Home / 860,504.90-1,290,757.35-545,317.70

Finding the Fourth Proportional to 860,504.90, 1,290,757.35 and 545,317.70

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Solution

The fourth proportional to 860,504.90, 1,290,757.35 and 545,317.70 is: 817,976.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,504.90 : 1,290,757.35 = 545,317.70 : x
  2. Step 2: Convert to fraction form
    860,504.90/1,290,757.35 = 545,317.70/x
  3. Step 3: Cross multiply
    860,504.90x = 1,290,757.35 × 545,317.70
  4. Step 4: Simplify right side
    860,504.90x = 703,872,829,360.10
  5. Step 5: Solve for x
    x = 703,872,829,360.10/860,504.90
  6. Step 6: Final answer
    x = 817,976.55

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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.