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Finding the Fourth Proportional to 750,472.76, 1,035,652.74 and 406,308.68

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Solution

The fourth proportional to 750,472.76, 1,035,652.74 and 406,308.68 is: 560,706.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    750,472.76 : 1,035,652.74 = 406,308.68 : x
  2. Step 2: Convert to fraction form
    750,472.76/1,035,652.74 = 406,308.68/x
  3. Step 3: Cross multiply
    750,472.76x = 1,035,652.74 × 406,308.68
  4. Step 4: Simplify right side
    750,472.76x = 420,794,697,727.78
  5. Step 5: Solve for x
    x = 420,794,697,727.78/750,472.76
  6. Step 6: Final answer
    x = 560,706.16

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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.