Home / 880,822.70-1,321,752.45-319,784.30

Finding the Fourth Proportional to 880,822.70, 1,321,752.45 and 319,784.30

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Solution

The fourth proportional to 880,822.70, 1,321,752.45 and 319,784.30 is: 479,864.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,822.70 : 1,321,752.45 = 319,784.30 : x
  2. Step 2: Convert to fraction form
    880,822.70/1,321,752.45 = 319,784.30/x
  3. Step 3: Cross multiply
    880,822.70x = 1,321,752.45 × 319,784.30
  4. Step 4: Simplify right side
    880,822.70x = 422,675,681,996.54
  5. Step 5: Solve for x
    x = 422,675,681,996.54/880,822.70
  6. Step 6: Final answer
    x = 479,864.66

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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.