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Finding the Fourth Proportional to 663,752.74, 915,977.04 and 361,946.74

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Solution

The fourth proportional to 663,752.74, 915,977.04 and 361,946.74 is: 499,485.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,752.74 : 915,977.04 = 361,946.74 : x
  2. Step 2: Convert to fraction form
    663,752.74/915,977.04 = 361,946.74/x
  3. Step 3: Cross multiply
    663,752.74x = 915,977.04 × 361,946.74
  4. Step 4: Simplify right side
    663,752.74x = 331,534,903,542.85
  5. Step 5: Solve for x
    x = 331,534,903,542.85/663,752.74
  6. Step 6: Final answer
    x = 499,485.55

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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.