Home / 1,138,156.02-1,570,652.10-628,854.75

Finding the Fourth Proportional to 1,138,156.02, 1,570,652.10 and 628,854.75

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Solution

The fourth proportional to 1,138,156.02, 1,570,652.10 and 628,854.75 is: 867,817.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,156.02 : 1,570,652.10 = 628,854.75 : x
  2. Step 2: Convert to fraction form
    1,138,156.02/1,570,652.10 = 628,854.75/x
  3. Step 3: Cross multiply
    1,138,156.02x = 1,570,652.10 × 628,854.75
  4. Step 4: Simplify right side
    1,138,156.02x = 987,712,033,682.48
  5. Step 5: Solve for x
    x = 987,712,033,682.48/1,138,156.02
  6. Step 6: Final answer
    x = 867,817.78

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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.