Home / 1,023,186.20-1,534,779.30-313,215.80

Finding the Fourth Proportional to 1,023,186.20, 1,534,779.30 and 313,215.80

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Solution

The fourth proportional to 1,023,186.20, 1,534,779.30 and 313,215.80 is: 469,823.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,023,186.20 : 1,534,779.30 = 313,215.80 : x
  2. Step 2: Convert to fraction form
    1,023,186.20/1,534,779.30 = 313,215.80/x
  3. Step 3: Cross multiply
    1,023,186.20x = 1,534,779.30 × 313,215.80
  4. Step 4: Simplify right side
    1,023,186.20x = 480,717,126,272.94
  5. Step 5: Solve for x
    x = 480,717,126,272.94/1,023,186.20
  6. Step 6: Final answer
    x = 469,823.70

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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.