Home / 886,287.90-1,329,152.96-287,110.02

Finding the Fourth Proportional to 886,287.90, 1,329,152.96 and 287,110.02

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Solution

The fourth proportional to 886,287.90, 1,329,152.96 and 287,110.02 is: 430,574.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,287.90 : 1,329,152.96 = 287,110.02 : x
  2. Step 2: Convert to fraction form
    886,287.90/1,329,152.96 = 287,110.02/x
  3. Step 3: Cross multiply
    886,287.90x = 1,329,152.96 × 287,110.02
  4. Step 4: Simplify right side
    886,287.90x = 381,613,132,928.66
  5. Step 5: Solve for x
    x = 381,613,132,928.66/886,287.90
  6. Step 6: Final answer
    x = 430,574.68

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Double scale
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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.