Home / 1,347,417.60-2,021,407.20-449,138.40

Finding the Fourth Proportional to 1,347,417.60, 2,021,407.20 and 449,138.40

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Solution

The fourth proportional to 1,347,417.60, 2,021,407.20 and 449,138.40 is: 673,801.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,347,417.60 : 2,021,407.20 = 449,138.40 : x
  2. Step 2: Convert to fraction form
    1,347,417.60/2,021,407.20 = 449,138.40/x
  3. Step 3: Cross multiply
    1,347,417.60x = 2,021,407.20 × 449,138.40
  4. Step 4: Simplify right side
    1,347,417.60x = 907,891,595,556.48
  5. Step 5: Solve for x
    x = 907,891,595,556.48/1,347,417.60
  6. Step 6: Final answer
    x = 673,801.20

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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.