Home / 817,455.28-1,127,449.20-531,067.68

Finding the Fourth Proportional to 817,455.28, 1,127,449.20 and 531,067.68

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Solution

The fourth proportional to 817,455.28, 1,127,449.20 and 531,067.68 is: 732,458.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,455.28 : 1,127,449.20 = 531,067.68 : x
  2. Step 2: Convert to fraction form
    817,455.28/1,127,449.20 = 531,067.68/x
  3. Step 3: Cross multiply
    817,455.28x = 1,127,449.20 × 531,067.68
  4. Step 4: Simplify right side
    817,455.28x = 598,751,830,961.86
  5. Step 5: Solve for x
    x = 598,751,830,961.86/817,455.28
  6. Step 6: Final answer
    x = 732,458.21

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1.5x scale

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.