Home / 1,038,140.20-1,557,210.30-896,422.60

Finding the Fourth Proportional to 1,038,140.20, 1,557,210.30 and 896,422.60

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Solution

The fourth proportional to 1,038,140.20, 1,557,210.30 and 896,422.60 is: 1,344,633.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,140.20 : 1,557,210.30 = 896,422.60 : x
  2. Step 2: Convert to fraction form
    1,038,140.20/1,557,210.30 = 896,422.60/x
  3. Step 3: Cross multiply
    1,038,140.20x = 1,557,210.30 × 896,422.60
  4. Step 4: Simplify right side
    1,038,140.20x = 1,395,918,505,872.78
  5. Step 5: Solve for x
    x = 1,395,918,505,872.78/1,038,140.20
  6. Step 6: Final answer
    x = 1,344,633.90

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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.