Home / 1,098,959.21-1,516,610.75-639,999.72

Finding the Fourth Proportional to 1,098,959.21, 1,516,610.75 and 639,999.72

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Solution

The fourth proportional to 1,098,959.21, 1,516,610.75 and 639,999.72 is: 883,227.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,098,959.21 : 1,516,610.75 = 639,999.72 : x
  2. Step 2: Convert to fraction form
    1,098,959.21/1,516,610.75 = 639,999.72/x
  3. Step 3: Cross multiply
    1,098,959.21x = 1,516,610.75 × 639,999.72
  4. Step 4: Simplify right side
    1,098,959.21x = 970,630,444,565.94
  5. Step 5: Solve for x
    x = 970,630,444,565.94/1,098,959.21
  6. Step 6: Final answer
    x = 883,227.00

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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.