Home / 990,822.29-1,367,419.08-561,178.85

Finding the Fourth Proportional to 990,822.29, 1,367,419.08 and 561,178.85

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Solution

The fourth proportional to 990,822.29, 1,367,419.08 and 561,178.85 is: 774,474.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,822.29 : 1,367,419.08 = 561,178.85 : x
  2. Step 2: Convert to fraction form
    990,822.29/1,367,419.08 = 561,178.85/x
  3. Step 3: Cross multiply
    990,822.29x = 1,367,419.08 × 561,178.85
  4. Step 4: Simplify right side
    990,822.29x = 767,366,657,139.47
  5. Step 5: Solve for x
    x = 767,366,657,139.47/990,822.29
  6. Step 6: Final answer
    x = 774,474.56

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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.