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Finding the Fourth Proportional to 536,920.34, 740,905.97 and 316,122.53

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Solution

The fourth proportional to 536,920.34, 740,905.97 and 316,122.53 is: 436,223.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,920.34 : 740,905.97 = 316,122.53 : x
  2. Step 2: Convert to fraction form
    536,920.34/740,905.97 = 316,122.53/x
  3. Step 3: Cross multiply
    536,920.34x = 740,905.97 × 316,122.53
  4. Step 4: Simplify right side
    536,920.34x = 234,217,070,000.16
  5. Step 5: Solve for x
    x = 234,217,070,000.16/536,920.34
  6. Step 6: Final answer
    x = 436,223.13

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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.