Home / 3,208,615.84-4,812,934.75-812,459.36

Finding the Fourth Proportional to 3,208,615.84, 4,812,934.75 and 812,459.36

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Solution

The fourth proportional to 3,208,615.84, 4,812,934.75 and 812,459.36 is: 1,218,691.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,208,615.84 : 4,812,934.75 = 812,459.36 : x
  2. Step 2: Convert to fraction form
    3,208,615.84/4,812,934.75 = 812,459.36/x
  3. Step 3: Cross multiply
    3,208,615.84x = 4,812,934.75 × 812,459.36
  4. Step 4: Simplify right side
    3,208,615.84x = 3,910,313,896,707.95
  5. Step 5: Solve for x
    x = 3,910,313,896,707.95/3,208,615.84
  6. Step 6: Final answer
    x = 1,218,691.83

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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.