Home / 5,428,718.26-8,143,357.65-1,385,241.46

Finding the Fourth Proportional to 5,428,718.26, 8,143,357.65 and 1,385,241.46

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Solution

The fourth proportional to 5,428,718.26, 8,143,357.65 and 1,385,241.46 is: 2,077,933.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,428,718.26 : 8,143,357.65 = 1,385,241.46 : x
  2. Step 2: Convert to fraction form
    5,428,718.26/8,143,357.65 = 1,385,241.46/x
  3. Step 3: Cross multiply
    5,428,718.26x = 8,143,357.65 × 1,385,241.46
  4. Step 4: Simplify right side
    5,428,718.26x = 11,280,516,640,388.17
  5. Step 5: Solve for x
    x = 11,280,516,640,388.17/5,428,718.26
  6. Step 6: Final answer
    x = 2,077,933.70

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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.