Home / 915,631.28-1,263,701.92-507,823.82

Finding the Fourth Proportional to 915,631.28, 1,263,701.92 and 507,823.82

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Solution

The fourth proportional to 915,631.28, 1,263,701.92 and 507,823.82 is: 700,869.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,631.28 : 1,263,701.92 = 507,823.82 : x
  2. Step 2: Convert to fraction form
    915,631.28/1,263,701.92 = 507,823.82/x
  3. Step 3: Cross multiply
    915,631.28x = 1,263,701.92 × 507,823.82
  4. Step 4: Simplify right side
    915,631.28x = 641,737,936,355.73
  5. Step 5: Solve for x
    x = 641,737,936,355.73/915,631.28
  6. Step 6: Final answer
    x = 700,869.39

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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.