Home / 881,151.20-1,215,973.68-478,740.32

Finding the Fourth Proportional to 881,151.20, 1,215,973.68 and 478,740.32

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Solution

The fourth proportional to 881,151.20, 1,215,973.68 and 478,740.32 is: 660,653.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,151.20 : 1,215,973.68 = 478,740.32 : x
  2. Step 2: Convert to fraction form
    881,151.20/1,215,973.68 = 478,740.32/x
  3. Step 3: Cross multiply
    881,151.20x = 1,215,973.68 × 478,740.32
  4. Step 4: Simplify right side
    881,151.20x = 582,135,628,674.78
  5. Step 5: Solve for x
    x = 582,135,628,674.78/881,151.20
  6. Step 6: Final answer
    x = 660,653.50

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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.