Home / 1,347,439.60-2,021,440.20-449,160.40

Finding the Fourth Proportional to 1,347,439.60, 2,021,440.20 and 449,160.40

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Solution

The fourth proportional to 1,347,439.60, 2,021,440.20 and 449,160.40 is: 673,834.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,347,439.60 : 2,021,440.20 = 449,160.40 : x
  2. Step 2: Convert to fraction form
    1,347,439.60/2,021,440.20 = 449,160.40/x
  3. Step 3: Cross multiply
    1,347,439.60x = 2,021,440.20 × 449,160.40
  4. Step 4: Simplify right side
    1,347,439.60x = 907,950,888,808.08
  5. Step 5: Solve for x
    x = 907,950,888,808.08/1,347,439.60
  6. Step 6: Final answer
    x = 673,834.20

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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.