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Finding the Fourth Proportional to 502,387.38, 692,819.53 and 330,001.16

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Solution

The fourth proportional to 502,387.38, 692,819.53 and 330,001.16 is: 455,089.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,387.38 : 692,819.53 = 330,001.16 : x
  2. Step 2: Convert to fraction form
    502,387.38/692,819.53 = 330,001.16/x
  3. Step 3: Cross multiply
    502,387.38x = 692,819.53 × 330,001.16
  4. Step 4: Simplify right side
    502,387.38x = 228,631,244,281.55
  5. Step 5: Solve for x
    x = 228,631,244,281.55/502,387.38
  6. Step 6: Final answer
    x = 455,089.55

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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.