Home / 959,219.20-1,438,828.80-918,265.60

Finding the Fourth Proportional to 959,219.20, 1,438,828.80 and 918,265.60

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Solution

The fourth proportional to 959,219.20, 1,438,828.80 and 918,265.60 is: 1,377,398.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    959,219.20 : 1,438,828.80 = 918,265.60 : x
  2. Step 2: Convert to fraction form
    959,219.20/1,438,828.80 = 918,265.60/x
  3. Step 3: Cross multiply
    959,219.20x = 1,438,828.80 × 918,265.60
  4. Step 4: Simplify right side
    959,219.20x = 1,321,226,991,329.28
  5. Step 5: Solve for x
    x = 1,321,226,991,329.28/959,219.20
  6. Step 6: Final answer
    x = 1,377,398.40

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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.