Home / 744,428.80-1,027,261.20-404,889.76

Finding the Fourth Proportional to 744,428.80, 1,027,261.20 and 404,889.76

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Solution

The fourth proportional to 744,428.80, 1,027,261.20 and 404,889.76 is: 558,720.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    744,428.80 : 1,027,261.20 = 404,889.76 : x
  2. Step 2: Convert to fraction form
    744,428.80/1,027,261.20 = 404,889.76/x
  3. Step 3: Cross multiply
    744,428.80x = 1,027,261.20 × 404,889.76
  4. Step 4: Simplify right side
    744,428.80x = 415,927,540,725.31
  5. Step 5: Solve for x
    x = 415,927,540,725.31/744,428.80
  6. Step 6: Final answer
    x = 558,720.38

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.