Home / 990,976.68-1,367,546.64-561,339.66

Finding the Fourth Proportional to 990,976.68, 1,367,546.64 and 561,339.66

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Solution

The fourth proportional to 990,976.68, 1,367,546.64 and 561,339.66 is: 774,648.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,976.68 : 1,367,546.64 = 561,339.66 : x
  2. Step 2: Convert to fraction form
    990,976.68/1,367,546.64 = 561,339.66/x
  3. Step 3: Cross multiply
    990,976.68x = 1,367,546.64 × 561,339.66
  4. Step 4: Simplify right side
    990,976.68x = 767,658,165,931.74
  5. Step 5: Solve for x
    x = 767,658,165,931.74/990,976.68
  6. Step 6: Final answer
    x = 774,648.06

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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.