Home / 788,446.20-1,180,919.70-648,478.20

Finding the Fourth Proportional to 788,446.20, 1,180,919.70 and 648,478.20

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Solution

The fourth proportional to 788,446.20, 1,180,919.70 and 648,478.20 is: 971,278.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,446.20 : 1,180,919.70 = 648,478.20 : x
  2. Step 2: Convert to fraction form
    788,446.20/1,180,919.70 = 648,478.20/x
  3. Step 3: Cross multiply
    788,446.20x = 1,180,919.70 × 648,478.20
  4. Step 4: Simplify right side
    788,446.20x = 765,800,681,400.54
  5. Step 5: Solve for x
    x = 765,800,681,400.54/788,446.20
  6. Step 6: Final answer
    x = 971,278.30

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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.