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Finding the Fourth Proportional to 603,648.90, 905,145.30 and 248,698.80

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Solution

The fourth proportional to 603,648.90, 905,145.30 and 248,698.80 is: 372,913.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,648.90 : 905,145.30 = 248,698.80 : x
  2. Step 2: Convert to fraction form
    603,648.90/905,145.30 = 248,698.80/x
  3. Step 3: Cross multiply
    603,648.90x = 905,145.30 × 248,698.80
  4. Step 4: Simplify right side
    603,648.90x = 225,108,549,935.64
  5. Step 5: Solve for x
    x = 225,108,549,935.64/603,648.90
  6. Step 6: Final answer
    x = 372,913.05

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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.