Home / 658,165.20-908,358.18-378,756.66

Finding the Fourth Proportional to 658,165.20, 908,358.18 and 378,756.66

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Solution

The fourth proportional to 658,165.20, 908,358.18 and 378,756.66 is: 522,736.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,165.20 : 908,358.18 = 378,756.66 : x
  2. Step 2: Convert to fraction form
    658,165.20/908,358.18 = 378,756.66/x
  3. Step 3: Cross multiply
    658,165.20x = 908,358.18 × 378,756.66
  4. Step 4: Simplify right side
    658,165.20x = 344,046,710,340.48
  5. Step 5: Solve for x
    x = 344,046,710,340.48/658,165.20
  6. Step 6: Final answer
    x = 522,736.10

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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.