Home / 814,154.73-1,220,764.86-308,393.13

Finding the Fourth Proportional to 814,154.73, 1,220,764.86 and 308,393.13

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Solution

The fourth proportional to 814,154.73, 1,220,764.86 and 308,393.13 is: 462,412.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,154.73 : 1,220,764.86 = 308,393.13 : x
  2. Step 2: Convert to fraction form
    814,154.73/1,220,764.86 = 308,393.13/x
  3. Step 3: Cross multiply
    814,154.73x = 1,220,764.86 × 308,393.13
  4. Step 4: Simplify right side
    814,154.73x = 376,475,496,169.41
  5. Step 5: Solve for x
    x = 376,475,496,169.41/814,154.73
  6. Step 6: Final answer
    x = 462,412.71

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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.