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Finding the Fourth Proportional to 533,740.32, 736,488.89 and 318,834.76

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Solution

The fourth proportional to 533,740.32, 736,488.89 and 318,834.76 is: 439,948.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,740.32 : 736,488.89 = 318,834.76 : x
  2. Step 2: Convert to fraction form
    533,740.32/736,488.89 = 318,834.76/x
  3. Step 3: Cross multiply
    533,740.32x = 736,488.89 × 318,834.76
  4. Step 4: Simplify right side
    533,740.32x = 234,818,258,485.82
  5. Step 5: Solve for x
    x = 234,818,258,485.82/533,740.32
  6. Step 6: Final answer
    x = 439,948.51

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.