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Finding the Fourth Proportional to 654,444.42, 980,664.60 and 440,418.90

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Solution

The fourth proportional to 654,444.42, 980,664.60 and 440,418.90 is: 659,954.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,444.42 : 980,664.60 = 440,418.90 : x
  2. Step 2: Convert to fraction form
    654,444.42/980,664.60 = 440,418.90/x
  3. Step 3: Cross multiply
    654,444.42x = 980,664.60 × 440,418.90
  4. Step 4: Simplify right side
    654,444.42x = 431,903,224,400.94
  5. Step 5: Solve for x
    x = 431,903,224,400.94/654,444.42
  6. Step 6: Final answer
    x = 659,954.02

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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.