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Finding the Fourth Proportional to 482,312.88, 665,609.40 and 361,240.56

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Solution

The fourth proportional to 482,312.88, 665,609.40 and 361,240.56 is: 498,525.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,312.88 : 665,609.40 = 361,240.56 : x
  2. Step 2: Convert to fraction form
    482,312.88/665,609.40 = 361,240.56/x
  3. Step 3: Cross multiply
    482,312.88x = 665,609.40 × 361,240.56
  4. Step 4: Simplify right side
    482,312.88x = 240,445,112,397.26
  5. Step 5: Solve for x
    x = 240,445,112,397.26/482,312.88
  6. Step 6: Final answer
    x = 498,525.17

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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.