Home / 695,220.40-1,043,608.20-538,145.20

Finding the Fourth Proportional to 695,220.40, 1,043,608.20 and 538,145.20

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Solution

The fourth proportional to 695,220.40, 1,043,608.20 and 538,145.20 is: 807,819.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,220.40 : 1,043,608.20 = 538,145.20 : x
  2. Step 2: Convert to fraction form
    695,220.40/1,043,608.20 = 538,145.20/x
  3. Step 3: Cross multiply
    695,220.40x = 1,043,608.20 × 538,145.20
  4. Step 4: Simplify right side
    695,220.40x = 561,612,743,510.64
  5. Step 5: Solve for x
    x = 561,612,743,510.64/695,220.40
  6. Step 6: Final answer
    x = 807,819.71

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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.