Home / 860,116.40-1,290,757.80-559,865.60

Finding the Fourth Proportional to 860,116.40, 1,290,757.80 and 559,865.60

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Solution

The fourth proportional to 860,116.40, 1,290,757.80 and 559,865.60 is: 840,178.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,116.40 : 1,290,757.80 = 559,865.60 : x
  2. Step 2: Convert to fraction form
    860,116.40/1,290,757.80 = 559,865.60/x
  3. Step 3: Cross multiply
    860,116.40x = 1,290,757.80 × 559,865.60
  4. Step 4: Simplify right side
    860,116.40x = 722,650,890,151.68
  5. Step 5: Solve for x
    x = 722,650,890,151.68/860,116.40
  6. Step 6: Final answer
    x = 840,178.02

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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.