Home / 774,540.80-1,161,811.20-577,932.80

Finding the Fourth Proportional to 774,540.80, 1,161,811.20 and 577,932.80

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Solution

The fourth proportional to 774,540.80, 1,161,811.20 and 577,932.80 is: 866,899.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    774,540.80 : 1,161,811.20 = 577,932.80 : x
  2. Step 2: Convert to fraction form
    774,540.80/1,161,811.20 = 577,932.80/x
  3. Step 3: Cross multiply
    774,540.80x = 1,161,811.20 × 577,932.80
  4. Step 4: Simplify right side
    774,540.80x = 671,448,799,887.36
  5. Step 5: Solve for x
    x = 671,448,799,887.36/774,540.80
  6. Step 6: Final answer
    x = 866,899.20

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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.