Home / 449,678.46-674,501.64-112,721.91

Finding the Fourth Proportional to 449,678.46, 674,501.64 and 112,721.91

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Solution

The fourth proportional to 449,678.46, 674,501.64 and 112,721.91 is: 169,078.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,678.46 : 674,501.64 = 112,721.91 : x
  2. Step 2: Convert to fraction form
    449,678.46/674,501.64 = 112,721.91/x
  3. Step 3: Cross multiply
    449,678.46x = 674,501.64 × 112,721.91
  4. Step 4: Simplify right side
    449,678.46x = 76,031,113,158.93
  5. Step 5: Solve for x
    x = 76,031,113,158.93/449,678.46
  6. Step 6: Final answer
    x = 169,078.84

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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.