Home / 1,023,185.70-1,534,778.55-313,215.30

Finding the Fourth Proportional to 1,023,185.70, 1,534,778.55 and 313,215.30

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Solution

The fourth proportional to 1,023,185.70, 1,534,778.55 and 313,215.30 is: 469,822.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,023,185.70 : 1,534,778.55 = 313,215.30 : x
  2. Step 2: Convert to fraction form
    1,023,185.70/1,534,778.55 = 313,215.30/x
  3. Step 3: Cross multiply
    1,023,185.70x = 1,534,778.55 × 313,215.30
  4. Step 4: Simplify right side
    1,023,185.70x = 480,716,123,971.82
  5. Step 5: Solve for x
    x = 480,716,123,971.82/1,023,185.70
  6. Step 6: Final answer
    x = 469,822.95

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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.