Home / 1,605,132.85-2,215,035.39-879,955.78

Finding the Fourth Proportional to 1,605,132.85, 2,215,035.39 and 879,955.78

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Solution

The fourth proportional to 1,605,132.85, 2,215,035.39 and 879,955.78 is: 1,214,312.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,605,132.85 : 2,215,035.39 = 879,955.78 : x
  2. Step 2: Convert to fraction form
    1,605,132.85/2,215,035.39 = 879,955.78/x
  3. Step 3: Cross multiply
    1,605,132.85x = 2,215,035.39 × 879,955.78
  4. Step 4: Simplify right side
    1,605,132.85x = 1,949,133,194,335.05
  5. Step 5: Solve for x
    x = 1,949,133,194,335.05/1,605,132.85
  6. Step 6: Final answer
    x = 1,214,312.69

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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.