Home / 886,732.50-1,330,285.56-287,646.90

Finding the Fourth Proportional to 886,732.50, 1,330,285.56 and 287,646.90

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Solution

The fourth proportional to 886,732.50, 1,330,285.56 and 287,646.90 is: 431,530.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,732.50 : 1,330,285.56 = 287,646.90 : x
  2. Step 2: Convert to fraction form
    886,732.50/1,330,285.56 = 287,646.90/x
  3. Step 3: Cross multiply
    886,732.50x = 1,330,285.56 × 287,646.90
  4. Step 4: Simplify right side
    886,732.50x = 382,652,517,448.76
  5. Step 5: Solve for x
    x = 382,652,517,448.76/886,732.50
  6. Step 6: Final answer
    x = 431,530.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.