Home / 915,122.25-1,372,884.39-375,381.72

Finding the Fourth Proportional to 915,122.25, 1,372,884.39 and 375,381.72

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Solution

The fourth proportional to 915,122.25, 1,372,884.39 and 375,381.72 is: 563,155.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,122.25 : 1,372,884.39 = 375,381.72 : x
  2. Step 2: Convert to fraction form
    915,122.25/1,372,884.39 = 375,381.72/x
  3. Step 3: Cross multiply
    915,122.25x = 1,372,884.39 × 375,381.72
  4. Step 4: Simplify right side
    915,122.25x = 515,355,703,679.35
  5. Step 5: Solve for x
    x = 515,355,703,679.35/915,122.25
  6. Step 6: Final answer
    x = 563,155.04

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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.