Home / 883,412.10-1,325,118.15-485,280.90

Finding the Fourth Proportional to 883,412.10, 1,325,118.15 and 485,280.90

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Solution

The fourth proportional to 883,412.10, 1,325,118.15 and 485,280.90 is: 727,921.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    883,412.10 : 1,325,118.15 = 485,280.90 : x
  2. Step 2: Convert to fraction form
    883,412.10/1,325,118.15 = 485,280.90/x
  3. Step 3: Cross multiply
    883,412.10x = 1,325,118.15 × 485,280.90
  4. Step 4: Simplify right side
    883,412.10x = 643,054,528,438.34
  5. Step 5: Solve for x
    x = 643,054,528,438.34/883,412.10
  6. Step 6: Final answer
    x = 727,921.35

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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.