Home / 990,803.41-1,367,393.03-561,159.97

Finding the Fourth Proportional to 990,803.41, 1,367,393.03 and 561,159.97

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Solution

The fourth proportional to 990,803.41, 1,367,393.03 and 561,159.97 is: 774,448.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,803.41 : 1,367,393.03 = 561,159.97 : x
  2. Step 2: Convert to fraction form
    990,803.41/1,367,393.03 = 561,159.97/x
  3. Step 3: Cross multiply
    990,803.41x = 1,367,393.03 × 561,159.97
  4. Step 4: Simplify right side
    990,803.41x = 767,326,227,573.08
  5. Step 5: Solve for x
    x = 767,326,227,573.08/990,803.41
  6. Step 6: Final answer
    x = 774,448.51

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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.