Home / 915,454.26-1,372,951.62-435,385.80

Finding the Fourth Proportional to 915,454.26, 1,372,951.62 and 435,385.80

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Solution

The fourth proportional to 915,454.26, 1,372,951.62 and 435,385.80 is: 652,969.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,454.26 : 1,372,951.62 = 435,385.80 : x
  2. Step 2: Convert to fraction form
    915,454.26/1,372,951.62 = 435,385.80/x
  3. Step 3: Cross multiply
    915,454.26x = 1,372,951.62 × 435,385.80
  4. Step 4: Simplify right side
    915,454.26x = 597,763,639,435.00
  5. Step 5: Solve for x
    x = 597,763,639,435.00/915,454.26
  6. Step 6: Final answer
    x = 652,969.42

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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.