Home / 918,512.20-1,375,310.70-584,278.60

Finding the Fourth Proportional to 918,512.20, 1,375,310.70 and 584,278.60

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Solution

The fourth proportional to 918,512.20, 1,375,310.70 and 584,278.60 is: 874,854.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,512.20 : 1,375,310.70 = 584,278.60 : x
  2. Step 2: Convert to fraction form
    918,512.20/1,375,310.70 = 584,278.60/x
  3. Step 3: Cross multiply
    918,512.20x = 1,375,310.70 × 584,278.60
  4. Step 4: Simplify right side
    918,512.20x = 803,564,610,361.02
  5. Step 5: Solve for x
    x = 803,564,610,361.02/918,512.20
  6. Step 6: Final answer
    x = 874,854.59

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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.