Home / 728,795.52-1,005,694.52-422,848.19

Finding the Fourth Proportional to 728,795.52, 1,005,694.52 and 422,848.19

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Solution

The fourth proportional to 728,795.52, 1,005,694.52 and 422,848.19 is: 583,505.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,795.52 : 1,005,694.52 = 422,848.19 : x
  2. Step 2: Convert to fraction form
    728,795.52/1,005,694.52 = 422,848.19/x
  3. Step 3: Cross multiply
    728,795.52x = 1,005,694.52 × 422,848.19
  4. Step 4: Simplify right side
    728,795.52x = 425,256,107,874.91
  5. Step 5: Solve for x
    x = 425,256,107,874.91/728,795.52
  6. Step 6: Final answer
    x = 583,505.38

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Double scale
Find fourth proportional to 728,796.52, 1,005,695.89 and 422,849.19
Similar ratio
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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.