Home / 687,366.60-1,031,140.35-255,025.17

Finding the Fourth Proportional to 687,366.60, 1,031,140.35 and 255,025.17

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Solution

The fourth proportional to 687,366.60, 1,031,140.35 and 255,025.17 is: 382,571.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,366.60 : 1,031,140.35 = 255,025.17 : x
  2. Step 2: Convert to fraction form
    687,366.60/1,031,140.35 = 255,025.17/x
  3. Step 3: Cross multiply
    687,366.60x = 1,031,140.35 × 255,025.17
  4. Step 4: Simplify right side
    687,366.60x = 262,966,743,052.61
  5. Step 5: Solve for x
    x = 262,966,743,052.61/687,366.60
  6. Step 6: Final answer
    x = 382,571.31

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Double scale
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Similar ratio
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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.