Home / 886,280.76-1,329,142.29-287,102.90

Finding the Fourth Proportional to 886,280.76, 1,329,142.29 and 287,102.90

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Solution

The fourth proportional to 886,280.76, 1,329,142.29 and 287,102.90 is: 430,564.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,280.76 : 1,329,142.29 = 287,102.90 : x
  2. Step 2: Convert to fraction form
    886,280.76/1,329,142.29 = 287,102.90/x
  3. Step 3: Cross multiply
    886,280.76x = 1,329,142.29 × 287,102.90
  4. Step 4: Simplify right side
    886,280.76x = 381,600,601,213.27
  5. Step 5: Solve for x
    x = 381,600,601,213.27/886,280.76
  6. Step 6: Final answer
    x = 430,564.02

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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.