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Finding the Fourth Proportional to 602,686.82, 904,180.71 and 425,540.18

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Solution

The fourth proportional to 602,686.82, 904,180.71 and 425,540.18 is: 638,416.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,686.82 : 904,180.71 = 425,540.18 : x
  2. Step 2: Convert to fraction form
    602,686.82/904,180.71 = 425,540.18/x
  3. Step 3: Cross multiply
    602,686.82x = 904,180.71 × 425,540.18
  4. Step 4: Simplify right side
    602,686.82x = 384,765,222,085.93
  5. Step 5: Solve for x
    x = 384,765,222,085.93/602,686.82
  6. Step 6: Final answer
    x = 638,416.52

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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.