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Finding the Third Proportional to 551,487 and 759,428

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Solution

The third proportional to 551,487 and 759,428 is: 1,045,774.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,487 : 759,428 = 759,428 : x
  2. Step 2: Convert to fraction form
    551,487/759,428 = 759,428/x
  3. Step 3: Cross multiply
    551,487x = 759,428 × 759,428
  4. Step 4: Simplify right side
    551,487x = 576,730,887,184
  5. Step 5: Solve for x
    x = 576,730,887,184/551,487
  6. Step 6: Final answer
    x = 1,045,774.22

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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.