Home / 744,057.90-1,115,200.71-518,195.48

Finding the Fourth Proportional to 744,057.90, 1,115,200.71 and 518,195.48

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Solution

The fourth proportional to 744,057.90, 1,115,200.71 and 518,195.48 is: 776,676.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    744,057.90 : 1,115,200.71 = 518,195.48 : x
  2. Step 2: Convert to fraction form
    744,057.90/1,115,200.71 = 518,195.48/x
  3. Step 3: Cross multiply
    744,057.90x = 1,115,200.71 × 518,195.48
  4. Step 4: Simplify right side
    744,057.90x = 577,891,961,638.79
  5. Step 5: Solve for x
    x = 577,891,961,638.79/744,057.90
  6. Step 6: Final answer
    x = 776,676.06

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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.