Home / 1,428,280.20-2,140,205.36-827,751.87

Finding the Fourth Proportional to 1,428,280.20, 2,140,205.36 and 827,751.87

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Solution

The fourth proportional to 1,428,280.20, 2,140,205.36 and 827,751.87 is: 1,240,344.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,428,280.20 : 2,140,205.36 = 827,751.87 : x
  2. Step 2: Convert to fraction form
    1,428,280.20/2,140,205.36 = 827,751.87/x
  3. Step 3: Cross multiply
    1,428,280.20x = 2,140,205.36 × 827,751.87
  4. Step 4: Simplify right side
    1,428,280.20x = 1,771,558,984,785.26
  5. Step 5: Solve for x
    x = 1,771,558,984,785.26/1,428,280.20
  6. Step 6: Final answer
    x = 1,240,344.15

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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.