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Finding the Fourth Proportional to 648,002.63, 894,244.19 and 361,522.78

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Solution

The fourth proportional to 648,002.63, 894,244.19 and 361,522.78 is: 498,901.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,002.63 : 894,244.19 = 361,522.78 : x
  2. Step 2: Convert to fraction form
    648,002.63/894,244.19 = 361,522.78/x
  3. Step 3: Cross multiply
    648,002.63x = 894,244.19 × 361,522.78
  4. Step 4: Simplify right side
    648,002.63x = 323,289,641,524.42
  5. Step 5: Solve for x
    x = 323,289,641,524.42/648,002.63
  6. Step 6: Final answer
    x = 498,901.74

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1.5x scale

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.