Home / 480,831.10-721,246.65-200,311.90

Finding the Fourth Proportional to 480,831.10, 721,246.65 and 200,311.90

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Solution

The fourth proportional to 480,831.10, 721,246.65 and 200,311.90 is: 300,467.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,831.10 : 721,246.65 = 200,311.90 : x
  2. Step 2: Convert to fraction form
    480,831.10/721,246.65 = 200,311.90/x
  3. Step 3: Cross multiply
    480,831.10x = 721,246.65 × 200,311.90
  4. Step 4: Simplify right side
    480,831.10x = 144,474,286,830.14
  5. Step 5: Solve for x
    x = 144,474,286,830.14/480,831.10
  6. Step 6: Final answer
    x = 300,467.85

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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.