Home / 918,519.64-1,267,578.30-516,118.36

Finding the Fourth Proportional to 918,519.64, 1,267,578.30 and 516,118.36

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Solution

The fourth proportional to 918,519.64, 1,267,578.30 and 516,118.36 is: 712,255.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,519.64 : 1,267,578.30 = 516,118.36 : x
  2. Step 2: Convert to fraction form
    918,519.64/1,267,578.30 = 516,118.36/x
  3. Step 3: Cross multiply
    918,519.64x = 1,267,578.30 × 516,118.36
  4. Step 4: Simplify right side
    918,519.64x = 654,220,433,367.59
  5. Step 5: Solve for x
    x = 654,220,433,367.59/918,519.64
  6. Step 6: Final answer
    x = 712,255.25

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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.