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Finding the Third Proportional to 298,432 and 450,528

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Solution

The third proportional to 298,432 and 450,528 is: 680,139.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,432 : 450,528 = 450,528 : x
  2. Step 2: Convert to fraction form
    298,432/450,528 = 450,528/x
  3. Step 3: Cross multiply
    298,432x = 450,528 × 450,528
  4. Step 4: Simplify right side
    298,432x = 202,975,478,784
  5. Step 5: Solve for x
    x = 202,975,478,784/298,432
  6. Step 6: Final answer
    x = 680,139.79

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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.