Home / 990,876.60-1,367,364.02-561,159.86

Finding the Fourth Proportional to 990,876.60, 1,367,364.02 and 561,159.86

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Solution

The fourth proportional to 990,876.60, 1,367,364.02 and 561,159.86 is: 774,374.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,876.60 : 1,367,364.02 = 561,159.86 : x
  2. Step 2: Convert to fraction form
    990,876.60/1,367,364.02 = 561,159.86/x
  3. Step 3: Cross multiply
    990,876.60x = 1,367,364.02 × 561,159.86
  4. Step 4: Simplify right side
    990,876.60x = 767,309,792,389.62
  5. Step 5: Solve for x
    x = 767,309,792,389.62/990,876.60
  6. Step 6: Final answer
    x = 774,374.72

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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.