Home / 695,427.80-1,043,141.70-410,826.20

Finding the Fourth Proportional to 695,427.80, 1,043,141.70 and 410,826.20

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Solution

The fourth proportional to 695,427.80, 1,043,141.70 and 410,826.20 is: 616,239.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,427.80 : 1,043,141.70 = 410,826.20 : x
  2. Step 2: Convert to fraction form
    695,427.80/1,043,141.70 = 410,826.20/x
  3. Step 3: Cross multiply
    695,427.80x = 1,043,141.70 × 410,826.20
  4. Step 4: Simplify right side
    695,427.80x = 428,549,940,672.54
  5. Step 5: Solve for x
    x = 428,549,940,672.54/695,427.80
  6. Step 6: Final answer
    x = 616,239.30

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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.