Home / 887,670.97-1,331,516.18-256,590.25

Finding the Fourth Proportional to 887,670.97, 1,331,516.18 and 256,590.25

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Solution

The fourth proportional to 887,670.97, 1,331,516.18 and 256,590.25 is: 384,888.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,670.97 : 1,331,516.18 = 256,590.25 : x
  2. Step 2: Convert to fraction form
    887,670.97/1,331,516.18 = 256,590.25/x
  3. Step 3: Cross multiply
    887,670.97x = 1,331,516.18 × 256,590.25
  4. Step 4: Simplify right side
    887,670.97x = 341,654,069,505.25
  5. Step 5: Solve for x
    x = 341,654,069,505.25/887,670.97
  6. Step 6: Final answer
    x = 384,888.19

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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.