Home / 684,070.20-944,002.96-378,159.48

Finding the Fourth Proportional to 684,070.20, 944,002.96 and 378,159.48

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Solution

The fourth proportional to 684,070.20, 944,002.96 and 378,159.48 is: 521,852.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,070.20 : 944,002.96 = 378,159.48 : x
  2. Step 2: Convert to fraction form
    684,070.20/944,002.96 = 378,159.48/x
  3. Step 3: Cross multiply
    684,070.20x = 944,002.96 × 378,159.48
  4. Step 4: Simplify right side
    684,070.20x = 356,983,668,472.06
  5. Step 5: Solve for x
    x = 356,983,668,472.06/684,070.20
  6. Step 6: Final answer
    x = 521,852.39

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Similar ratio
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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.