Home / 862,200.96-1,189,806.48-480,207.12

Finding the Fourth Proportional to 862,200.96, 1,189,806.48 and 480,207.12

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Solution

The fourth proportional to 862,200.96, 1,189,806.48 and 480,207.12 is: 662,668.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,200.96 : 1,189,806.48 = 480,207.12 : x
  2. Step 2: Convert to fraction form
    862,200.96/1,189,806.48 = 480,207.12/x
  3. Step 3: Cross multiply
    862,200.96x = 1,189,806.48 × 480,207.12
  4. Step 4: Simplify right side
    862,200.96x = 571,353,543,118.14
  5. Step 5: Solve for x
    x = 571,353,543,118.14/862,200.96
  6. Step 6: Final answer
    x = 662,668.65

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Double scale
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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.