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Finding the Third Proportional to 388,358 and 803,672

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Solution

The third proportional to 388,358 and 803,672 is: 1,663,127.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,358 : 803,672 = 803,672 : x
  2. Step 2: Convert to fraction form
    388,358/803,672 = 803,672/x
  3. Step 3: Cross multiply
    388,358x = 803,672 × 803,672
  4. Step 4: Simplify right side
    388,358x = 645,888,683,584
  5. Step 5: Solve for x
    x = 645,888,683,584/388,358
  6. Step 6: Final answer
    x = 1,663,127.02

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Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.