Home / 413,913.78-571,634.69-285,186.96

Finding the Fourth Proportional to 413,913.78, 571,634.69 and 285,186.96

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Solution

The fourth proportional to 413,913.78, 571,634.69 and 285,186.96 is: 393,856.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,913.78 : 571,634.69 = 285,186.96 : x
  2. Step 2: Convert to fraction form
    413,913.78/571,634.69 = 285,186.96/x
  3. Step 3: Cross multiply
    413,913.78x = 571,634.69 × 285,186.96
  4. Step 4: Simplify right side
    413,913.78x = 163,022,758,045.71
  5. Step 5: Solve for x
    x = 163,022,758,045.71/413,913.78
  6. Step 6: Final answer
    x = 393,856.80

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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.