Home / 778,859.10-1,168,446.60-442,061.10

Finding the Fourth Proportional to 778,859.10, 1,168,446.60 and 442,061.10

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Solution

The fourth proportional to 778,859.10, 1,168,446.60 and 442,061.10 is: 663,181.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,859.10 : 1,168,446.60 = 442,061.10 : x
  2. Step 2: Convert to fraction form
    778,859.10/1,168,446.60 = 442,061.10/x
  3. Step 3: Cross multiply
    778,859.10x = 1,168,446.60 × 442,061.10
  4. Step 4: Simplify right side
    778,859.10x = 516,524,789,287.26
  5. Step 5: Solve for x
    x = 516,524,789,287.26/778,859.10
  6. Step 6: Final answer
    x = 663,181.30

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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.