Home / 990,821.10-1,367,417.44-561,177.66

Finding the Fourth Proportional to 990,821.10, 1,367,417.44 and 561,177.66

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Solution

The fourth proportional to 990,821.10, 1,367,417.44 and 561,177.66 is: 774,472.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,821.10 : 1,367,417.44 = 561,177.66 : x
  2. Step 2: Convert to fraction form
    990,821.10/1,367,417.44 = 561,177.66/x
  3. Step 3: Cross multiply
    990,821.10x = 1,367,417.44 × 561,177.66
  4. Step 4: Simplify right side
    990,821.10x = 767,364,110,982.36
  5. Step 5: Solve for x
    x = 767,364,110,982.36/990,821.10
  6. Step 6: Final answer
    x = 774,472.92

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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.