Home / 729,139.80-1,093,709.70-613,666.20

Finding the Fourth Proportional to 729,139.80, 1,093,709.70 and 613,666.20

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Solution

The fourth proportional to 729,139.80, 1,093,709.70 and 613,666.20 is: 920,499.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,139.80 : 1,093,709.70 = 613,666.20 : x
  2. Step 2: Convert to fraction form
    729,139.80/1,093,709.70 = 613,666.20/x
  3. Step 3: Cross multiply
    729,139.80x = 1,093,709.70 × 613,666.20
  4. Step 4: Simplify right side
    729,139.80x = 671,172,675,502.14
  5. Step 5: Solve for x
    x = 671,172,675,502.14/729,139.80
  6. Step 6: Final answer
    x = 920,499.30

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Similar ratio
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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.