Home / 386,013.01-578,379.27-273,133.72

Finding the Fourth Proportional to 386,013.01, 578,379.27 and 273,133.72

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Solution

The fourth proportional to 386,013.01, 578,379.27 and 273,133.72 is: 409,247.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,013.01 : 578,379.27 = 273,133.72 : x
  2. Step 2: Convert to fraction form
    386,013.01/578,379.27 = 273,133.72/x
  3. Step 3: Cross multiply
    386,013.01x = 578,379.27 × 273,133.72
  4. Step 4: Simplify right side
    386,013.01x = 157,974,881,585.98
  5. Step 5: Solve for x
    x = 157,974,881,585.98/386,013.01
  6. Step 6: Final answer
    x = 409,247.56

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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.