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Finding the Fourth Proportional to 658,006.32, 908,054.94 and 386,078.82

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Solution

The fourth proportional to 658,006.32, 908,054.94 and 386,078.82 is: 532,792.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,006.32 : 908,054.94 = 386,078.82 : x
  2. Step 2: Convert to fraction form
    658,006.32/908,054.94 = 386,078.82/x
  3. Step 3: Cross multiply
    658,006.32x = 908,054.94 × 386,078.82
  4. Step 4: Simplify right side
    658,006.32x = 350,580,779,730.37
  5. Step 5: Solve for x
    x = 350,580,779,730.37/658,006.32
  6. Step 6: Final answer
    x = 532,792.42

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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.