Home / 862,478.85-1,190,222.06-480,519.03

Finding the Fourth Proportional to 862,478.85, 1,190,222.06 and 480,519.03

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Solution

The fourth proportional to 862,478.85, 1,190,222.06 and 480,519.03 is: 663,116.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,478.85 : 1,190,222.06 = 480,519.03 : x
  2. Step 2: Convert to fraction form
    862,478.85/1,190,222.06 = 480,519.03/x
  3. Step 3: Cross multiply
    862,478.85x = 1,190,222.06 × 480,519.03
  4. Step 4: Simplify right side
    862,478.85x = 571,924,347,353.21
  5. Step 5: Solve for x
    x = 571,924,347,353.21/862,478.85
  6. Step 6: Final answer
    x = 663,116.95

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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.