Home / 857,148.90-1,288,687.95-801,647.70

Finding the Fourth Proportional to 857,148.90, 1,288,687.95 and 801,647.70

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Solution

The fourth proportional to 857,148.90, 1,288,687.95 and 801,647.70 is: 1,205,244.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,148.90 : 1,288,687.95 = 801,647.70 : x
  2. Step 2: Convert to fraction form
    857,148.90/1,288,687.95 = 801,647.70/x
  3. Step 3: Cross multiply
    857,148.90x = 1,288,687.95 × 801,647.70
  4. Step 4: Simplify right side
    857,148.90x = 1,033,073,731,135.21
  5. Step 5: Solve for x
    x = 1,033,073,731,135.21/857,148.90
  6. Step 6: Final answer
    x = 1,205,244.19

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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.