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Finding the Fourth Proportional to 487,952.70, 731,929.05 and 410,970.30

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Solution

The fourth proportional to 487,952.70, 731,929.05 and 410,970.30 is: 616,455.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,952.70 : 731,929.05 = 410,970.30 : x
  2. Step 2: Convert to fraction form
    487,952.70/731,929.05 = 410,970.30/x
  3. Step 3: Cross multiply
    487,952.70x = 731,929.05 × 410,970.30
  4. Step 4: Simplify right side
    487,952.70x = 300,801,101,257.22
  5. Step 5: Solve for x
    x = 300,801,101,257.22/487,952.70
  6. Step 6: Final answer
    x = 616,455.45

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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.