Home / 766,145.40-1,149,218.10-500,424.90

Finding the Fourth Proportional to 766,145.40, 1,149,218.10 and 500,424.90

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Solution

The fourth proportional to 766,145.40, 1,149,218.10 and 500,424.90 is: 750,637.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,145.40 : 1,149,218.10 = 500,424.90 : x
  2. Step 2: Convert to fraction form
    766,145.40/1,149,218.10 = 500,424.90/x
  3. Step 3: Cross multiply
    766,145.40x = 1,149,218.10 × 500,424.90
  4. Step 4: Simplify right side
    766,145.40x = 575,097,352,770.69
  5. Step 5: Solve for x
    x = 575,097,352,770.69/766,145.40
  6. Step 6: Final answer
    x = 750,637.35

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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.