Home / 818,564.40-1,228,013.28-345,251.52

Finding the Fourth Proportional to 818,564.40, 1,228,013.28 and 345,251.52

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Solution

The fourth proportional to 818,564.40, 1,228,013.28 and 345,251.52 is: 517,947.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,564.40 : 1,228,013.28 = 345,251.52 : x
  2. Step 2: Convert to fraction form
    818,564.40/1,228,013.28 = 345,251.52/x
  3. Step 3: Cross multiply
    818,564.40x = 1,228,013.28 × 345,251.52
  4. Step 4: Simplify right side
    818,564.40x = 423,973,451,500.19
  5. Step 5: Solve for x
    x = 423,973,451,500.19/818,564.40
  6. Step 6: Final answer
    x = 517,947.58

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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.