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Finding the Fourth Proportional to 648,002.40, 971,542.80 and 248,488.80

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Solution

The fourth proportional to 648,002.40, 971,542.80 and 248,488.80 is: 372,556.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,002.40 : 971,542.80 = 248,488.80 : x
  2. Step 2: Convert to fraction form
    648,002.40/971,542.80 = 248,488.80/x
  3. Step 3: Cross multiply
    648,002.40x = 971,542.80 × 248,488.80
  4. Step 4: Simplify right side
    648,002.40x = 241,417,504,520.64
  5. Step 5: Solve for x
    x = 241,417,504,520.64/648,002.40
  6. Step 6: Final answer
    x = 372,556.50

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1.5x scale

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.