Home / 1,207,620.20-1,811,372.70-408,823.40

Finding the Fourth Proportional to 1,207,620.20, 1,811,372.70 and 408,823.40

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Solution

The fourth proportional to 1,207,620.20, 1,811,372.70 and 408,823.40 is: 613,215.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,620.20 : 1,811,372.70 = 408,823.40 : x
  2. Step 2: Convert to fraction form
    1,207,620.20/1,811,372.70 = 408,823.40/x
  3. Step 3: Cross multiply
    1,207,620.20x = 1,811,372.70 × 408,823.40
  4. Step 4: Simplify right side
    1,207,620.20x = 740,531,545,881.18
  5. Step 5: Solve for x
    x = 740,531,545,881.18/1,207,620.20
  6. Step 6: Final answer
    x = 613,215.60

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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.