Home / 1,040,220.68-1,560,501.79-320,562.51

Finding the Fourth Proportional to 1,040,220.68, 1,560,501.79 and 320,562.51

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Solution

The fourth proportional to 1,040,220.68, 1,560,501.79 and 320,562.51 is: 480,896.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040,220.68 : 1,560,501.79 = 320,562.51 : x
  2. Step 2: Convert to fraction form
    1,040,220.68/1,560,501.79 = 320,562.51/x
  3. Step 3: Cross multiply
    1,040,220.68x = 1,560,501.79 × 320,562.51
  4. Step 4: Simplify right side
    1,040,220.68x = 500,238,364,008.61
  5. Step 5: Solve for x
    x = 500,238,364,008.61/1,040,220.68
  6. Step 6: Final answer
    x = 480,896.39

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Double scale
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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.