Home / 821,309.22-1,231,542.90-437,276.07

Finding the Fourth Proportional to 821,309.22, 1,231,542.90 and 437,276.07

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Solution

The fourth proportional to 821,309.22, 1,231,542.90 and 437,276.07 is: 655,690.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,309.22 : 1,231,542.90 = 437,276.07 : x
  2. Step 2: Convert to fraction form
    821,309.22/1,231,542.90 = 437,276.07/x
  3. Step 3: Cross multiply
    821,309.22x = 1,231,542.90 × 437,276.07
  4. Step 4: Simplify right side
    821,309.22x = 538,524,239,348.40
  5. Step 5: Solve for x
    x = 538,524,239,348.40/821,309.22
  6. Step 6: Final answer
    x = 655,690.00

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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.