Home / 386,545.72-579,873.24-120,333.10

Finding the Fourth Proportional to 386,545.72, 579,873.24 and 120,333.10

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Solution

The fourth proportional to 386,545.72, 579,873.24 and 120,333.10 is: 180,516.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,545.72 : 579,873.24 = 120,333.10 : x
  2. Step 2: Convert to fraction form
    386,545.72/579,873.24 = 120,333.10/x
  3. Step 3: Cross multiply
    386,545.72x = 579,873.24 × 120,333.10
  4. Step 4: Simplify right side
    386,545.72x = 69,777,944,576.24
  5. Step 5: Solve for x
    x = 69,777,944,576.24/386,545.72
  6. Step 6: Final answer
    x = 180,516.67

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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.