Home / 724,687.47-1,000,160.96-438,209.60

Finding the Fourth Proportional to 724,687.47, 1,000,160.96 and 438,209.60

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Solution

The fourth proportional to 724,687.47, 1,000,160.96 and 438,209.60 is: 604,785.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,687.47 : 1,000,160.96 = 438,209.60 : x
  2. Step 2: Convert to fraction form
    724,687.47/1,000,160.96 = 438,209.60/x
  3. Step 3: Cross multiply
    724,687.47x = 1,000,160.96 × 438,209.60
  4. Step 4: Simplify right side
    724,687.47x = 438,280,127,025.36
  5. Step 5: Solve for x
    x = 438,280,127,025.36/724,687.47
  6. Step 6: Final answer
    x = 604,785.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.