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Finding the Fourth Proportional to 648,210.56, 894,423.57 and 361,729.95

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Solution

The fourth proportional to 648,210.56, 894,423.57 and 361,729.95 is: 499,127.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,210.56 : 894,423.57 = 361,729.95 : x
  2. Step 2: Convert to fraction form
    648,210.56/894,423.57 = 361,729.95/x
  3. Step 3: Cross multiply
    648,210.56x = 894,423.57 × 361,729.95
  4. Step 4: Simplify right side
    648,210.56x = 323,539,793,254.92
  5. Step 5: Solve for x
    x = 323,539,793,254.92/648,210.56
  6. Step 6: Final answer
    x = 499,127.62

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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.