Home / 819,188.40-1,227,817.25-369,382.65

Finding the Fourth Proportional to 819,188.40, 1,227,817.25 and 369,382.65

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Solution

The fourth proportional to 819,188.40, 1,227,817.25 and 369,382.65 is: 553,638.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,188.40 : 1,227,817.25 = 369,382.65 : x
  2. Step 2: Convert to fraction form
    819,188.40/1,227,817.25 = 369,382.65/x
  3. Step 3: Cross multiply
    819,188.40x = 1,227,817.25 × 369,382.65
  4. Step 4: Simplify right side
    819,188.40x = 453,534,389,520.71
  5. Step 5: Solve for x
    x = 453,534,389,520.71/819,188.40
  6. Step 6: Final answer
    x = 553,638.69

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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.