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Finding the Fourth Proportional to 625,531.54, 863,212.53 and 370,731.46

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Solution

The fourth proportional to 625,531.54, 863,212.53 and 370,731.46 is: 511,596.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,531.54 : 863,212.53 = 370,731.46 : x
  2. Step 2: Convert to fraction form
    625,531.54/863,212.53 = 370,731.46/x
  3. Step 3: Cross multiply
    625,531.54x = 863,212.53 × 370,731.46
  4. Step 4: Simplify right side
    625,531.54x = 320,020,041,537.19
  5. Step 5: Solve for x
    x = 320,020,041,537.19/625,531.54
  6. Step 6: Final answer
    x = 511,596.97

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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.