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Finding the Third Proportional to 357,288 and 781,536

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Solution

The third proportional to 357,288 and 781,536 is: 1,709,541.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,288 : 781,536 = 781,536 : x
  2. Step 2: Convert to fraction form
    357,288/781,536 = 781,536/x
  3. Step 3: Cross multiply
    357,288x = 781,536 × 781,536
  4. Step 4: Simplify right side
    357,288x = 610,798,519,296
  5. Step 5: Solve for x
    x = 610,798,519,296/357,288
  6. Step 6: Final answer
    x = 1,709,541.10

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.