Home / 724,983.35-1,086,876.27-319,887.14

Finding the Fourth Proportional to 724,983.35, 1,086,876.27 and 319,887.14

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Solution

The fourth proportional to 724,983.35, 1,086,876.27 and 319,887.14 is: 479,566.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,983.35 : 1,086,876.27 = 319,887.14 : x
  2. Step 2: Convert to fraction form
    724,983.35/1,086,876.27 = 319,887.14/x
  3. Step 3: Cross multiply
    724,983.35x = 1,086,876.27 × 319,887.14
  4. Step 4: Simplify right side
    724,983.35x = 347,677,736,109.79
  5. Step 5: Solve for x
    x = 347,677,736,109.79/724,983.35
  6. Step 6: Final answer
    x = 479,566.51

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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.