Home / 748,627.20-1,122,940.80-299,417.40

Finding the Fourth Proportional to 748,627.20, 1,122,940.80 and 299,417.40

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Solution

The fourth proportional to 748,627.20, 1,122,940.80 and 299,417.40 is: 449,126.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,627.20 : 1,122,940.80 = 299,417.40 : x
  2. Step 2: Convert to fraction form
    748,627.20/1,122,940.80 = 299,417.40/x
  3. Step 3: Cross multiply
    748,627.20x = 1,122,940.80 × 299,417.40
  4. Step 4: Simplify right side
    748,627.20x = 336,228,014,689.92
  5. Step 5: Solve for x
    x = 336,228,014,689.92/748,627.20
  6. Step 6: Final answer
    x = 449,126.10

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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.