Home / 724,461.70-1,086,687.15-219,021.70

Finding the Fourth Proportional to 724,461.70, 1,086,687.15 and 219,021.70

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Solution

The fourth proportional to 724,461.70, 1,086,687.15 and 219,021.70 is: 328,530.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,461.70 : 1,086,687.15 = 219,021.70 : x
  2. Step 2: Convert to fraction form
    724,461.70/1,086,687.15 = 219,021.70/x
  3. Step 3: Cross multiply
    724,461.70x = 1,086,687.15 × 219,021.70
  4. Step 4: Simplify right side
    724,461.70x = 238,008,066,961.16
  5. Step 5: Solve for x
    x = 238,008,066,961.16/724,461.70
  6. Step 6: Final answer
    x = 328,530.92

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Double scale
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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.