Home / 533,731.52-736,411.20-318,776.96

Finding the Fourth Proportional to 533,731.52, 736,411.20 and 318,776.96

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Solution

The fourth proportional to 533,731.52, 736,411.20 and 318,776.96 is: 439,829.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,731.52 : 736,411.20 = 318,776.96 : x
  2. Step 2: Convert to fraction form
    533,731.52/736,411.20 = 318,776.96/x
  3. Step 3: Cross multiply
    533,731.52x = 736,411.20 × 318,776.96
  4. Step 4: Simplify right side
    533,731.52x = 234,750,923,645.95
  5. Step 5: Solve for x
    x = 234,750,923,645.95/533,731.52
  6. Step 6: Final answer
    x = 439,829.61

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1.5x scale

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.