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Finding the Fourth Proportional to 658,402.86, 908,627.07 and 386,482.62

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Solution

The fourth proportional to 658,402.86, 908,627.07 and 386,482.62 is: 533,364.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,402.86 : 908,627.07 = 386,482.62 : x
  2. Step 2: Convert to fraction form
    658,402.86/908,627.07 = 386,482.62/x
  3. Step 3: Cross multiply
    658,402.86x = 908,627.07 × 386,482.62
  4. Step 4: Simplify right side
    658,402.86x = 351,168,570,616.52
  5. Step 5: Solve for x
    x = 351,168,570,616.52/658,402.86
  6. Step 6: Final answer
    x = 533,364.28

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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.