Home / 1,187,572.50-1,638,953.73-651,132.18

Finding the Fourth Proportional to 1,187,572.50, 1,638,953.73 and 651,132.18

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Solution

The fourth proportional to 1,187,572.50, 1,638,953.73 and 651,132.18 is: 898,619.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,572.50 : 1,638,953.73 = 651,132.18 : x
  2. Step 2: Convert to fraction form
    1,187,572.50/1,638,953.73 = 651,132.18/x
  3. Step 3: Cross multiply
    1,187,572.50x = 1,638,953.73 × 651,132.18
  4. Step 4: Simplify right side
    1,187,572.50x = 1,067,175,515,134.03
  5. Step 5: Solve for x
    x = 1,067,175,515,134.03/1,187,572.50
  6. Step 6: Final answer
    x = 898,619.25

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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.