Home / 687,360.46-948,555.39-381,482.92

Finding the Fourth Proportional to 687,360.46, 948,555.39 and 381,482.92

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Solution

The fourth proportional to 687,360.46, 948,555.39 and 381,482.92 is: 526,445.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,360.46 : 948,555.39 = 381,482.92 : x
  2. Step 2: Convert to fraction form
    687,360.46/948,555.39 = 381,482.92/x
  3. Step 3: Cross multiply
    687,360.46x = 948,555.39 × 381,482.92
  4. Step 4: Simplify right side
    687,360.46x = 361,857,679,958.94
  5. Step 5: Solve for x
    x = 361,857,679,958.94/687,360.46
  6. Step 6: Final answer
    x = 526,445.29

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.