Home / 799,320.60-1,198,980.90-620,861.40

Finding the Fourth Proportional to 799,320.60, 1,198,980.90 and 620,861.40

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Solution

The fourth proportional to 799,320.60, 1,198,980.90 and 620,861.40 is: 931,292.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    799,320.60 : 1,198,980.90 = 620,861.40 : x
  2. Step 2: Convert to fraction form
    799,320.60/1,198,980.90 = 620,861.40/x
  3. Step 3: Cross multiply
    799,320.60x = 1,198,980.90 × 620,861.40
  4. Step 4: Simplify right side
    799,320.60x = 744,400,960,147.26
  5. Step 5: Solve for x
    x = 744,400,960,147.26/799,320.60
  6. Step 6: Final answer
    x = 931,292.10

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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.