Home / 821,966.64-1,233,049.59-289,378.68

Finding the Fourth Proportional to 821,966.64, 1,233,049.59 and 289,378.68

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Solution

The fourth proportional to 821,966.64, 1,233,049.59 and 289,378.68 is: 434,103.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,966.64 : 1,233,049.59 = 289,378.68 : x
  2. Step 2: Convert to fraction form
    821,966.64/1,233,049.59 = 289,378.68/x
  3. Step 3: Cross multiply
    821,966.64x = 1,233,049.59 × 289,378.68
  4. Step 4: Simplify right side
    821,966.64x = 356,818,262,728.74
  5. Step 5: Solve for x
    x = 356,818,262,728.74/821,966.64
  6. Step 6: Final answer
    x = 434,103.10

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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.