Home / 819,188.53-1,227,817.44-369,382.77

Finding the Fourth Proportional to 819,188.53, 1,227,817.44 and 369,382.77

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Solution

The fourth proportional to 819,188.53, 1,227,817.44 and 369,382.77 is: 553,638.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,188.53 : 1,227,817.44 = 369,382.77 : x
  2. Step 2: Convert to fraction form
    819,188.53/1,227,817.44 = 369,382.77/x
  3. Step 3: Cross multiply
    819,188.53x = 1,227,817.44 × 369,382.77
  4. Step 4: Simplify right side
    819,188.53x = 453,534,607,041.51
  5. Step 5: Solve for x
    x = 453,534,607,041.51/819,188.53
  6. Step 6: Final answer
    x = 553,638.87

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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.