Home / 918,315.30-1,377,472.95-664,404.60

Finding the Fourth Proportional to 918,315.30, 1,377,472.95 and 664,404.60

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Solution

The fourth proportional to 918,315.30, 1,377,472.95 and 664,404.60 is: 996,606.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,315.30 : 1,377,472.95 = 664,404.60 : x
  2. Step 2: Convert to fraction form
    918,315.30/1,377,472.95 = 664,404.60/x
  3. Step 3: Cross multiply
    918,315.30x = 1,377,472.95 × 664,404.60
  4. Step 4: Simplify right side
    918,315.30x = 915,199,364,355.57
  5. Step 5: Solve for x
    x = 915,199,364,355.57/918,315.30
  6. Step 6: Final answer
    x = 996,606.90

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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.