Home / 875,403.25-1,208,149.37-513,131.50

Finding the Fourth Proportional to 875,403.25, 1,208,149.37 and 513,131.50

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Solution

The fourth proportional to 875,403.25, 1,208,149.37 and 513,131.50 is: 708,175.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,403.25 : 1,208,149.37 = 513,131.50 : x
  2. Step 2: Convert to fraction form
    875,403.25/1,208,149.37 = 513,131.50/x
  3. Step 3: Cross multiply
    875,403.25x = 1,208,149.37 × 513,131.50
  4. Step 4: Simplify right side
    875,403.25x = 619,939,498,452.16
  5. Step 5: Solve for x
    x = 619,939,498,452.16/875,403.25
  6. Step 6: Final answer
    x = 708,175.92

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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.