Home / 1,542,149.10-2,128,165.47-863,085.60

Finding the Fourth Proportional to 1,542,149.10, 2,128,165.47 and 863,085.60

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Solution

The fourth proportional to 1,542,149.10, 2,128,165.47 and 863,085.60 is: 1,191,057.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,542,149.10 : 2,128,165.47 = 863,085.60 : x
  2. Step 2: Convert to fraction form
    1,542,149.10/2,128,165.47 = 863,085.60/x
  3. Step 3: Cross multiply
    1,542,149.10x = 2,128,165.47 × 863,085.60
  4. Step 4: Simplify right side
    1,542,149.10x = 1,836,788,971,574.23
  5. Step 5: Solve for x
    x = 1,836,788,971,574.23/1,542,149.10
  6. Step 6: Final answer
    x = 1,191,057.97

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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.