Home / 3,217,642.76-4,826,459.88-821,487.80

Finding the Fourth Proportional to 3,217,642.76, 4,826,459.88 and 821,487.80

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Solution

The fourth proportional to 3,217,642.76, 4,826,459.88 and 821,487.80 is: 1,232,230.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,217,642.76 : 4,826,459.88 = 821,487.80 : x
  2. Step 2: Convert to fraction form
    3,217,642.76/4,826,459.88 = 821,487.80/x
  3. Step 3: Cross multiply
    3,217,642.76x = 4,826,459.88 × 821,487.80
  4. Step 4: Simplify right side
    3,217,642.76x = 3,964,877,908,609.46
  5. Step 5: Solve for x
    x = 3,964,877,908,609.46/3,217,642.76
  6. Step 6: Final answer
    x = 1,232,230.61

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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.