Home / 861,335.36-1,291,051.52-355,617.60

Finding the Fourth Proportional to 861,335.36, 1,291,051.52 and 355,617.60

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Solution

The fourth proportional to 861,335.36, 1,291,051.52 and 355,617.60 is: 533,033.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,335.36 : 1,291,051.52 = 355,617.60 : x
  2. Step 2: Convert to fraction form
    861,335.36/1,291,051.52 = 355,617.60/x
  3. Step 3: Cross multiply
    861,335.36x = 1,291,051.52 × 355,617.60
  4. Step 4: Simplify right side
    861,335.36x = 459,120,643,018.75
  5. Step 5: Solve for x
    x = 459,120,643,018.75/861,335.36
  6. Step 6: Final answer
    x = 533,033.55

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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.