Home / 1,638,166.16-2,260,691.88-912,993.68

Finding the Fourth Proportional to 1,638,166.16, 2,260,691.88 and 912,993.68

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Solution

The fourth proportional to 1,638,166.16, 2,260,691.88 and 912,993.68 is: 1,259,943.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,638,166.16 : 2,260,691.88 = 912,993.68 : x
  2. Step 2: Convert to fraction form
    1,638,166.16/2,260,691.88 = 912,993.68/x
  3. Step 3: Cross multiply
    1,638,166.16x = 2,260,691.88 × 912,993.68
  4. Step 4: Simplify right side
    1,638,166.16x = 2,063,997,398,867.32
  5. Step 5: Solve for x
    x = 2,063,997,398,867.32/1,638,166.16
  6. Step 6: Final answer
    x = 1,259,943.86

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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.