Home / 538,154.83-742,650.15-296,431.78

Finding the Fourth Proportional to 538,154.83, 742,650.15 and 296,431.78

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Solution

The fourth proportional to 538,154.83, 742,650.15 and 296,431.78 is: 409,073.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,154.83 : 742,650.15 = 296,431.78 : x
  2. Step 2: Convert to fraction form
    538,154.83/742,650.15 = 296,431.78/x
  3. Step 3: Cross multiply
    538,154.83x = 742,650.15 × 296,431.78
  4. Step 4: Simplify right side
    538,154.83x = 220,145,105,881.77
  5. Step 5: Solve for x
    x = 220,145,105,881.77/538,154.83
  6. Step 6: Final answer
    x = 409,073.92

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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.