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Finding the Fourth Proportional to 648,420.60, 972,170.10 and 293,604.60

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Solution

The fourth proportional to 648,420.60, 972,170.10 and 293,604.60 is: 440,198.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,420.60 : 972,170.10 = 293,604.60 : x
  2. Step 2: Convert to fraction form
    648,420.60/972,170.10 = 293,604.60/x
  3. Step 3: Cross multiply
    648,420.60x = 972,170.10 × 293,604.60
  4. Step 4: Simplify right side
    648,420.60x = 285,433,613,342.46
  5. Step 5: Solve for x
    x = 285,433,613,342.46/648,420.60
  6. Step 6: Final answer
    x = 440,198.25

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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.