Home / 456,315.78-684,421.38-119,388.96

Finding the Fourth Proportional to 456,315.78, 684,421.38 and 119,388.96

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Solution

The fourth proportional to 456,315.78, 684,421.38 and 119,388.96 is: 179,069.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,315.78 : 684,421.38 = 119,388.96 : x
  2. Step 2: Convert to fraction form
    456,315.78/684,421.38 = 119,388.96/x
  3. Step 3: Cross multiply
    456,315.78x = 684,421.38 × 119,388.96
  4. Step 4: Simplify right side
    456,315.78x = 81,712,356,759.96
  5. Step 5: Solve for x
    x = 81,712,356,759.96/456,315.78
  6. Step 6: Final answer
    x = 179,069.76

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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.