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Finding the Fourth Proportional to 440,672.80, 659,972.40 and 440,672.80

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Solution

The fourth proportional to 440,672.80, 659,972.40 and 440,672.80 is: 659,972.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,672.80 : 659,972.40 = 440,672.80 : x
  2. Step 2: Convert to fraction form
    440,672.80/659,972.40 = 440,672.80/x
  3. Step 3: Cross multiply
    440,672.80x = 659,972.40 × 440,672.80
  4. Step 4: Simplify right side
    440,672.80x = 290,831,885,430.72
  5. Step 5: Solve for x
    x = 290,831,885,430.72/440,672.80
  6. Step 6: Final answer
    x = 659,972.40

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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.