Home / 990,719.02-1,485,610.15-383,791.60

Finding the Fourth Proportional to 990,719.02, 1,485,610.15 and 383,791.60

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Solution

The fourth proportional to 990,719.02, 1,485,610.15 and 383,791.60 is: 575,505.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,719.02 : 1,485,610.15 = 383,791.60 : x
  2. Step 2: Convert to fraction form
    990,719.02/1,485,610.15 = 383,791.60/x
  3. Step 3: Cross multiply
    990,719.02x = 1,485,610.15 × 383,791.60
  4. Step 4: Simplify right side
    990,719.02x = 570,164,696,444.74
  5. Step 5: Solve for x
    x = 570,164,696,444.74/990,719.02
  6. Step 6: Final answer
    x = 575,505.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.