Home / 1,111,291.80-1,667,715.30-480,658.20

Finding the Fourth Proportional to 1,111,291.80, 1,667,715.30 and 480,658.20

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Solution

The fourth proportional to 1,111,291.80, 1,667,715.30 and 480,658.20 is: 721,323.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,111,291.80 : 1,667,715.30 = 480,658.20 : x
  2. Step 2: Convert to fraction form
    1,111,291.80/1,667,715.30 = 480,658.20/x
  3. Step 3: Cross multiply
    1,111,291.80x = 1,667,715.30 × 480,658.20
  4. Step 4: Simplify right side
    1,111,291.80x = 801,601,034,210.46
  5. Step 5: Solve for x
    x = 801,601,034,210.46/1,111,291.80
  6. Step 6: Final answer
    x = 721,323.63

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Double scale
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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.