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Finding the Fourth Proportional to 648,265.74, 894,651.93 and 361,790.52

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Solution

The fourth proportional to 648,265.74, 894,651.93 and 361,790.52 is: 499,296.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,265.74 : 894,651.93 = 361,790.52 : x
  2. Step 2: Convert to fraction form
    648,265.74/894,651.93 = 361,790.52/x
  3. Step 3: Cross multiply
    648,265.74x = 894,651.93 × 361,790.52
  4. Step 4: Simplify right side
    648,265.74x = 323,676,586,973.70
  5. Step 5: Solve for x
    x = 323,676,586,973.70/648,265.74
  6. Step 6: Final answer
    x = 499,296.15

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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.