Home / 764,089.69-1,146,068.52-258,639.85

Finding the Fourth Proportional to 764,089.69, 1,146,068.52 and 258,639.85

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Solution

The fourth proportional to 764,089.69, 1,146,068.52 and 258,639.85 is: 387,937.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,089.69 : 1,146,068.52 = 258,639.85 : x
  2. Step 2: Convert to fraction form
    764,089.69/1,146,068.52 = 258,639.85/x
  3. Step 3: Cross multiply
    764,089.69x = 1,146,068.52 × 258,639.85
  4. Step 4: Simplify right side
    764,089.69x = 296,418,990,102.52
  5. Step 5: Solve for x
    x = 296,418,990,102.52/764,089.69
  6. Step 6: Final answer
    x = 387,937.43

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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.