Home / 838,707.62-1,258,061.42-207,621.42

Finding the Fourth Proportional to 838,707.62, 1,258,061.42 and 207,621.42

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Solution

The fourth proportional to 838,707.62, 1,258,061.42 and 207,621.42 is: 311,432.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,707.62 : 1,258,061.42 = 207,621.42 : x
  2. Step 2: Convert to fraction form
    838,707.62/1,258,061.42 = 207,621.42/x
  3. Step 3: Cross multiply
    838,707.62x = 1,258,061.42 × 207,621.42
  4. Step 4: Simplify right side
    838,707.62x = 261,200,497,429.51
  5. Step 5: Solve for x
    x = 261,200,497,429.51/838,707.62
  6. Step 6: Final answer
    x = 311,432.13

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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.