Home / 990,069.30-1,366,061.43-560,349.42

Finding the Fourth Proportional to 990,069.30, 1,366,061.43 and 560,349.42

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Solution

The fourth proportional to 990,069.30, 1,366,061.43 and 560,349.42 is: 773,149.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,069.30 : 1,366,061.43 = 560,349.42 : x
  2. Step 2: Convert to fraction form
    990,069.30/1,366,061.43 = 560,349.42/x
  3. Step 3: Cross multiply
    990,069.30x = 1,366,061.43 × 560,349.42
  4. Step 4: Simplify right side
    990,069.30x = 765,471,729,984.87
  5. Step 5: Solve for x
    x = 765,471,729,984.87/990,069.30
  6. Step 6: Final answer
    x = 773,149.65

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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.