Home / 538,407.29-742,998.85-293,391.61

Finding the Fourth Proportional to 538,407.29, 742,998.85 and 293,391.61

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Solution

The fourth proportional to 538,407.29, 742,998.85 and 293,391.61 is: 404,878.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,407.29 : 742,998.85 = 293,391.61 : x
  2. Step 2: Convert to fraction form
    538,407.29/742,998.85 = 293,391.61/x
  3. Step 3: Cross multiply
    538,407.29x = 742,998.85 × 293,391.61
  4. Step 4: Simplify right side
    538,407.29x = 217,989,626,238.67
  5. Step 5: Solve for x
    x = 217,989,626,238.67/538,407.29
  6. Step 6: Final answer
    x = 404,878.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.