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Finding the Third Proportional to 402,307 and 607,560

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Solution

The third proportional to 402,307 and 607,560 is: 917,531.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,307 : 607,560 = 607,560 : x
  2. Step 2: Convert to fraction form
    402,307/607,560 = 607,560/x
  3. Step 3: Cross multiply
    402,307x = 607,560 × 607,560
  4. Step 4: Simplify right side
    402,307x = 369,129,153,600
  5. Step 5: Solve for x
    x = 369,129,153,600/402,307
  6. Step 6: Final answer
    x = 917,531.02

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.