Home / 687,367.60-1,031,141.85-255,026.17

Finding the Fourth Proportional to 687,367.60, 1,031,141.85 and 255,026.17

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Solution

The fourth proportional to 687,367.60, 1,031,141.85 and 255,026.17 is: 382,572.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,367.60 : 1,031,141.85 = 255,026.17 : x
  2. Step 2: Convert to fraction form
    687,367.60/1,031,141.85 = 255,026.17/x
  3. Step 3: Cross multiply
    687,367.60x = 1,031,141.85 × 255,026.17
  4. Step 4: Simplify right side
    687,367.60x = 262,968,156,732.22
  5. Step 5: Solve for x
    x = 262,968,156,732.22/687,367.60
  6. Step 6: Final answer
    x = 382,572.81

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.