Home / 1,138,158.02-1,570,654.86-628,856.75

Finding the Fourth Proportional to 1,138,158.02, 1,570,654.86 and 628,856.75

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Solution

The fourth proportional to 1,138,158.02, 1,570,654.86 and 628,856.75 is: 867,820.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,158.02 : 1,570,654.86 = 628,856.75 : x
  2. Step 2: Convert to fraction form
    1,138,158.02/1,570,654.86 = 628,856.75/x
  3. Step 3: Cross multiply
    1,138,158.02x = 1,570,654.86 × 628,856.75
  4. Step 4: Simplify right side
    1,138,158.02x = 987,716,910,631.31
  5. Step 5: Solve for x
    x = 987,716,910,631.31/1,138,158.02
  6. Step 6: Final answer
    x = 867,820.54

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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.