Home / 413,569.20-619,576.20-213,207.60

Finding the Fourth Proportional to 413,569.20, 619,576.20 and 213,207.60

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Solution

The fourth proportional to 413,569.20, 619,576.20 and 213,207.60 is: 319,410.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,569.20 : 619,576.20 = 213,207.60 : x
  2. Step 2: Convert to fraction form
    413,569.20/619,576.20 = 213,207.60/x
  3. Step 3: Cross multiply
    413,569.20x = 619,576.20 × 213,207.60
  4. Step 4: Simplify right side
    413,569.20x = 132,098,354,619.12
  5. Step 5: Solve for x
    x = 132,098,354,619.12/413,569.20
  6. Step 6: Final answer
    x = 319,410.52

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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.