Home / 500,947.50-691,309.98-299,743.50

Finding the Fourth Proportional to 500,947.50, 691,309.98 and 299,743.50

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Solution

The fourth proportional to 500,947.50, 691,309.98 and 299,743.50 is: 413,647.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,947.50 : 691,309.98 = 299,743.50 : x
  2. Step 2: Convert to fraction form
    500,947.50/691,309.98 = 299,743.50/x
  3. Step 3: Cross multiply
    500,947.50x = 691,309.98 × 299,743.50
  4. Step 4: Simplify right side
    500,947.50x = 207,215,672,990.13
  5. Step 5: Solve for x
    x = 207,215,672,990.13/500,947.50
  6. Step 6: Final answer
    x = 413,647.48

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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.