Home / 864,123.12-1,192,514.40-482,141.70

Finding the Fourth Proportional to 864,123.12, 1,192,514.40 and 482,141.70

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Solution

The fourth proportional to 864,123.12, 1,192,514.40 and 482,141.70 is: 665,369.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,123.12 : 1,192,514.40 = 482,141.70 : x
  2. Step 2: Convert to fraction form
    864,123.12/1,192,514.40 = 482,141.70/x
  3. Step 3: Cross multiply
    864,123.12x = 1,192,514.40 × 482,141.70
  4. Step 4: Simplify right side
    864,123.12x = 574,960,920,090.48
  5. Step 5: Solve for x
    x = 574,960,920,090.48/864,123.12
  6. Step 6: Final answer
    x = 665,369.21

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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.