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Finding the Fourth Proportional to 492,077.65, 738,116.48 and 487,930.45

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Solution

The fourth proportional to 492,077.65, 738,116.48 and 487,930.45 is: 731,895.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,077.65 : 738,116.48 = 487,930.45 : x
  2. Step 2: Convert to fraction form
    492,077.65/738,116.48 = 487,930.45/x
  3. Step 3: Cross multiply
    492,077.65x = 738,116.48 × 487,930.45
  4. Step 4: Simplify right side
    492,077.65x = 360,149,506,238.82
  5. Step 5: Solve for x
    x = 360,149,506,238.82/492,077.65
  6. Step 6: Final answer
    x = 731,895.68

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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.