Home / 859,095.90-1,288,643.85-819,729.90

Finding the Fourth Proportional to 859,095.90, 1,288,643.85 and 819,729.90

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Solution

The fourth proportional to 859,095.90, 1,288,643.85 and 819,729.90 is: 1,229,594.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,095.90 : 1,288,643.85 = 819,729.90 : x
  2. Step 2: Convert to fraction form
    859,095.90/1,288,643.85 = 819,729.90/x
  3. Step 3: Cross multiply
    859,095.90x = 1,288,643.85 × 819,729.90
  4. Step 4: Simplify right side
    859,095.90x = 1,056,339,894,296.12
  5. Step 5: Solve for x
    x = 1,056,339,894,296.12/859,095.90
  6. Step 6: Final answer
    x = 1,229,594.85

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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.