Home / 1,187,571-1,638,951.66-651,130.68

Finding the Fourth Proportional to 1,187,571, 1,638,951.66 and 651,130.68

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Solution

The fourth proportional to 1,187,571, 1,638,951.66 and 651,130.68 is: 898,617.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,571 : 1,638,951.66 = 651,130.68 : x
  2. Step 2: Convert to fraction form
    1,187,571/1,638,951.66 = 651,130.68/x
  3. Step 3: Cross multiply
    1,187,571x = 1,638,951.66 × 651,130.68
  4. Step 4: Simplify right side
    1,187,571x = 1,067,171,708,862.93
  5. Step 5: Solve for x
    x = 1,067,171,708,862.93/1,187,571
  6. Step 6: Final answer
    x = 898,617.18

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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.