Home / 1,245,800.19-1,868,856.12-487,543.71

Finding the Fourth Proportional to 1,245,800.19, 1,868,856.12 and 487,543.71

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Solution

The fourth proportional to 1,245,800.19, 1,868,856.12 and 487,543.71 is: 731,376.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,800.19 : 1,868,856.12 = 487,543.71 : x
  2. Step 2: Convert to fraction form
    1,245,800.19/1,868,856.12 = 487,543.71/x
  3. Step 3: Cross multiply
    1,245,800.19x = 1,868,856.12 × 487,543.71
  4. Step 4: Simplify right side
    1,245,800.19x = 911,149,046,201.01
  5. Step 5: Solve for x
    x = 911,149,046,201.01/1,245,800.19
  6. Step 6: Final answer
    x = 731,376.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.