Home / 931,638.92-1,397,458.70-291,992.29

Finding the Fourth Proportional to 931,638.92, 1,397,458.70 and 291,992.29

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Solution

The fourth proportional to 931,638.92, 1,397,458.70 and 291,992.29 is: 437,988.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,638.92 : 1,397,458.70 = 291,992.29 : x
  2. Step 2: Convert to fraction form
    931,638.92/1,397,458.70 = 291,992.29/x
  3. Step 3: Cross multiply
    931,638.92x = 1,397,458.70 × 291,992.29
  4. Step 4: Simplify right side
    931,638.92x = 408,047,170,816.72
  5. Step 5: Solve for x
    x = 408,047,170,816.72/931,638.92
  6. Step 6: Final answer
    x = 437,988.54

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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.