Home / 982,821.87-1,474,161.71-309,095.90

Finding the Fourth Proportional to 982,821.87, 1,474,161.71 and 309,095.90

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Solution

The fourth proportional to 982,821.87, 1,474,161.71 and 309,095.90 is: 463,621.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    982,821.87 : 1,474,161.71 = 309,095.90 : x
  2. Step 2: Convert to fraction form
    982,821.87/1,474,161.71 = 309,095.90/x
  3. Step 3: Cross multiply
    982,821.87x = 1,474,161.71 × 309,095.90
  4. Step 4: Simplify right side
    982,821.87x = 455,657,331,581.70
  5. Step 5: Solve for x
    x = 455,657,331,581.70/982,821.87
  6. Step 6: Final answer
    x = 463,621.48

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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.