Home / 875,129.40-1,312,694.10-476,998.20

Finding the Fourth Proportional to 875,129.40, 1,312,694.10 and 476,998.20

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Solution

The fourth proportional to 875,129.40, 1,312,694.10 and 476,998.20 is: 715,497.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,129.40 : 1,312,694.10 = 476,998.20 : x
  2. Step 2: Convert to fraction form
    875,129.40/1,312,694.10 = 476,998.20/x
  3. Step 3: Cross multiply
    875,129.40x = 1,312,694.10 × 476,998.20
  4. Step 4: Simplify right side
    875,129.40x = 626,152,722,850.62
  5. Step 5: Solve for x
    x = 626,152,722,850.62/875,129.40
  6. Step 6: Final answer
    x = 715,497.30

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.