Home / 990,788.46-1,367,288.02-561,151.64

Finding the Fourth Proportional to 990,788.46, 1,367,288.02 and 561,151.64

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Solution

The fourth proportional to 990,788.46, 1,367,288.02 and 561,151.64 is: 774,389.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,788.46 : 1,367,288.02 = 561,151.64 : x
  2. Step 2: Convert to fraction form
    990,788.46/1,367,288.02 = 561,151.64/x
  3. Step 3: Cross multiply
    990,788.46x = 1,367,288.02 × 561,151.64
  4. Step 4: Simplify right side
    990,788.46x = 767,255,914,775.35
  5. Step 5: Solve for x
    x = 767,255,914,775.35/990,788.46
  6. Step 6: Final answer
    x = 774,389.23

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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.