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Finding the Fourth Proportional to 533,737.72, 736,437.48 and 318,835.72

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Solution

The fourth proportional to 533,737.72, 736,437.48 and 318,835.72 is: 439,921.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,737.72 : 736,437.48 = 318,835.72 : x
  2. Step 2: Convert to fraction form
    533,737.72/736,437.48 = 318,835.72/x
  3. Step 3: Cross multiply
    533,737.72x = 736,437.48 × 318,835.72
  4. Step 4: Simplify right side
    533,737.72x = 234,802,574,170.79
  5. Step 5: Solve for x
    x = 234,802,574,170.79/533,737.72
  6. Step 6: Final answer
    x = 439,921.27

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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.