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Finding the Fourth Proportional to 492,055.90, 738,083.85 and 487,908.70

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Solution

The fourth proportional to 492,055.90, 738,083.85 and 487,908.70 is: 731,863.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,055.90 : 738,083.85 = 487,908.70 : x
  2. Step 2: Convert to fraction form
    492,055.90/738,083.85 = 487,908.70/x
  3. Step 3: Cross multiply
    492,055.90x = 738,083.85 × 487,908.70
  4. Step 4: Simplify right side
    492,055.90x = 360,117,531,744.50
  5. Step 5: Solve for x
    x = 360,117,531,744.50/492,055.90
  6. Step 6: Final answer
    x = 731,863.05

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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.