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Finding the Fourth Proportional to 492,051.90, 738,077.85 and 487,386.30

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Solution

The fourth proportional to 492,051.90, 738,077.85 and 487,386.30 is: 731,079.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,051.90 : 738,077.85 = 487,386.30 : x
  2. Step 2: Convert to fraction form
    492,051.90/738,077.85 = 487,386.30/x
  3. Step 3: Cross multiply
    492,051.90x = 738,077.85 × 487,386.30
  4. Step 4: Simplify right side
    492,051.90x = 359,729,032,423.46
  5. Step 5: Solve for x
    x = 359,729,032,423.46/492,051.90
  6. Step 6: Final answer
    x = 731,079.45

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Similar ratio
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.