Home / 785,757.12-1,179,151.92-431,020.32

Finding the Fourth Proportional to 785,757.12, 1,179,151.92 and 431,020.32

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Solution

The fourth proportional to 785,757.12, 1,179,151.92 and 431,020.32 is: 646,813.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,757.12 : 1,179,151.92 = 431,020.32 : x
  2. Step 2: Convert to fraction form
    785,757.12/1,179,151.92 = 431,020.32/x
  3. Step 3: Cross multiply
    785,757.12x = 1,179,151.92 × 431,020.32
  4. Step 4: Simplify right side
    785,757.12x = 508,238,437,887.01
  5. Step 5: Solve for x
    x = 508,238,437,887.01/785,757.12
  6. Step 6: Final answer
    x = 646,813.66

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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.