Home / 861,448.62-1,292,238.52-262,460.90

Finding the Fourth Proportional to 861,448.62, 1,292,238.52 and 262,460.90

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Solution

The fourth proportional to 861,448.62, 1,292,238.52 and 262,460.90 is: 393,711.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,448.62 : 1,292,238.52 = 262,460.90 : x
  2. Step 2: Convert to fraction form
    861,448.62/1,292,238.52 = 262,460.90/x
  3. Step 3: Cross multiply
    861,448.62x = 1,292,238.52 × 262,460.90
  4. Step 4: Simplify right side
    861,448.62x = 339,162,084,973.87
  5. Step 5: Solve for x
    x = 339,162,084,973.87/861,448.62
  6. Step 6: Final answer
    x = 393,711.33

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1.5x scale

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.