Home / 535,911.94-739,531.32-318,129.92

Finding the Fourth Proportional to 535,911.94, 739,531.32 and 318,129.92

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Solution

The fourth proportional to 535,911.94, 739,531.32 and 318,129.92 is: 439,003.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,911.94 : 739,531.32 = 318,129.92 : x
  2. Step 2: Convert to fraction form
    535,911.94/739,531.32 = 318,129.92/x
  3. Step 3: Cross multiply
    535,911.94x = 739,531.32 × 318,129.92
  4. Step 4: Simplify right side
    535,911.94x = 235,267,037,551.69
  5. Step 5: Solve for x
    x = 235,267,037,551.69/535,911.94
  6. Step 6: Final answer
    x = 439,003.16

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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.