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Finding the Fourth Proportional to 606,576.60, 908,115.30 and 407,122.20

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Solution

The fourth proportional to 606,576.60, 908,115.30 and 407,122.20 is: 609,509.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,576.60 : 908,115.30 = 407,122.20 : x
  2. Step 2: Convert to fraction form
    606,576.60/908,115.30 = 407,122.20/x
  3. Step 3: Cross multiply
    606,576.60x = 908,115.30 × 407,122.20
  4. Step 4: Simplify right side
    606,576.60x = 369,713,898,789.66
  5. Step 5: Solve for x
    x = 369,713,898,789.66/606,576.60
  6. Step 6: Final answer
    x = 609,509.00

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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.