Home / 518,021.24-777,114.90-218,545.93

Finding the Fourth Proportional to 518,021.24, 777,114.90 and 218,545.93

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Solution

The fourth proportional to 518,021.24, 777,114.90 and 218,545.93 is: 327,853.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,021.24 : 777,114.90 = 218,545.93 : x
  2. Step 2: Convert to fraction form
    518,021.24/777,114.90 = 218,545.93/x
  3. Step 3: Cross multiply
    518,021.24x = 777,114.90 × 218,545.93
  4. Step 4: Simplify right side
    518,021.24x = 169,835,298,537.36
  5. Step 5: Solve for x
    x = 169,835,298,537.36/518,021.24
  6. Step 6: Final answer
    x = 327,853.93

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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.