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Finding the Fourth Proportional to 665,535.96, 918,439.61 and 363,729.96

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Solution

The fourth proportional to 665,535.96, 918,439.61 and 363,729.96 is: 501,947.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,535.96 : 918,439.61 = 363,729.96 : x
  2. Step 2: Convert to fraction form
    665,535.96/918,439.61 = 363,729.96/x
  3. Step 3: Cross multiply
    665,535.96x = 918,439.61 × 363,729.96
  4. Step 4: Simplify right side
    665,535.96x = 334,064,000,789.07
  5. Step 5: Solve for x
    x = 334,064,000,789.07/665,535.96
  6. Step 6: Final answer
    x = 501,947.33

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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.