Home / 868,920.50-1,199,148.20-481,711.28

Finding the Fourth Proportional to 868,920.50, 1,199,148.20 and 481,711.28

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Solution

The fourth proportional to 868,920.50, 1,199,148.20 and 481,711.28 is: 664,782.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,920.50 : 1,199,148.20 = 481,711.28 : x
  2. Step 2: Convert to fraction form
    868,920.50/1,199,148.20 = 481,711.28/x
  3. Step 3: Cross multiply
    868,920.50x = 1,199,148.20 × 481,711.28
  4. Step 4: Simplify right side
    868,920.50x = 577,643,205,927.40
  5. Step 5: Solve for x
    x = 577,643,205,927.40/868,920.50
  6. Step 6: Final answer
    x = 664,782.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.