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Finding the Third Proportional to 784,432 and 1,693,280

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Solution

The third proportional to 784,432 and 1,693,280 is: 3,655,125.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,432 : 1,693,280 = 1,693,280 : x
  2. Step 2: Convert to fraction form
    784,432/1,693,280 = 1,693,280/x
  3. Step 3: Cross multiply
    784,432x = 1,693,280 × 1,693,280
  4. Step 4: Simplify right side
    784,432x = 2,867,197,158,400
  5. Step 5: Solve for x
    x = 2,867,197,158,400/784,432
  6. Step 6: Final answer
    x = 3,655,125.18

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.