Home / 814,252.18-1,123,551.63-487,486.89

Finding the Fourth Proportional to 814,252.18, 1,123,551.63 and 487,486.89

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Solution

The fourth proportional to 814,252.18, 1,123,551.63 and 487,486.89 is: 672,662.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,252.18 : 1,123,551.63 = 487,486.89 : x
  2. Step 2: Convert to fraction form
    814,252.18/1,123,551.63 = 487,486.89/x
  3. Step 3: Cross multiply
    814,252.18x = 1,123,551.63 × 487,486.89
  4. Step 4: Simplify right side
    814,252.18x = 547,716,695,079.73
  5. Step 5: Solve for x
    x = 547,716,695,079.73/814,252.18
  6. Step 6: Final answer
    x = 672,662.24

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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.