Home / 881,183.20-1,216,017.76-478,772.32

Finding the Fourth Proportional to 881,183.20, 1,216,017.76 and 478,772.32

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Solution

The fourth proportional to 881,183.20, 1,216,017.76 and 478,772.32 is: 660,697.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,183.20 : 1,216,017.76 = 478,772.32 : x
  2. Step 2: Convert to fraction form
    881,183.20/1,216,017.76 = 478,772.32/x
  3. Step 3: Cross multiply
    881,183.20x = 1,216,017.76 × 478,772.32
  4. Step 4: Simplify right side
    881,183.20x = 582,195,644,116.40
  5. Step 5: Solve for x
    x = 582,195,644,116.40/881,183.20
  6. Step 6: Final answer
    x = 660,697.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.