Home / 955,949.79-1,319,227.49-520,379.66

Finding the Fourth Proportional to 955,949.79, 1,319,227.49 and 520,379.66

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Solution

The fourth proportional to 955,949.79, 1,319,227.49 and 520,379.66 is: 718,133.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    955,949.79 : 1,319,227.49 = 520,379.66 : x
  2. Step 2: Convert to fraction form
    955,949.79/1,319,227.49 = 520,379.66/x
  3. Step 3: Cross multiply
    955,949.79x = 1,319,227.49 × 520,379.66
  4. Step 4: Simplify right side
    955,949.79x = 686,499,152,708.85
  5. Step 5: Solve for x
    x = 686,499,152,708.85/955,949.79
  6. Step 6: Final answer
    x = 718,133.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.