Home / 858,065.28-1,287,102.24-352,901.76

Finding the Fourth Proportional to 858,065.28, 1,287,102.24 and 352,901.76

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Solution

The fourth proportional to 858,065.28, 1,287,102.24 and 352,901.76 is: 529,354.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,065.28 : 1,287,102.24 = 352,901.76 : x
  2. Step 2: Convert to fraction form
    858,065.28/1,287,102.24 = 352,901.76/x
  3. Step 3: Cross multiply
    858,065.28x = 1,287,102.24 × 352,901.76
  4. Step 4: Simplify right side
    858,065.28x = 454,220,645,795.94
  5. Step 5: Solve for x
    x = 454,220,645,795.94/858,065.28
  6. Step 6: Final answer
    x = 529,354.42

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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.