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Finding the Fourth Proportional to 440,474.40, 660,711.60 and 283,010.40

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Solution

The fourth proportional to 440,474.40, 660,711.60 and 283,010.40 is: 424,515.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,474.40 : 660,711.60 = 283,010.40 : x
  2. Step 2: Convert to fraction form
    440,474.40/660,711.60 = 283,010.40/x
  3. Step 3: Cross multiply
    440,474.40x = 660,711.60 × 283,010.40
  4. Step 4: Simplify right side
    440,474.40x = 186,988,254,200.64
  5. Step 5: Solve for x
    x = 186,988,254,200.64/440,474.40
  6. Step 6: Final answer
    x = 424,515.60

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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.