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Finding the Fourth Proportional to 544,933.60, 818,014.80 and 420,824.80

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Solution

The fourth proportional to 544,933.60, 818,014.80 and 420,824.80 is: 631,711.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,933.60 : 818,014.80 = 420,824.80 : x
  2. Step 2: Convert to fraction form
    544,933.60/818,014.80 = 420,824.80/x
  3. Step 3: Cross multiply
    544,933.60x = 818,014.80 × 420,824.80
  4. Step 4: Simplify right side
    544,933.60x = 344,240,914,607.04
  5. Step 5: Solve for x
    x = 344,240,914,607.04/544,933.60
  6. Step 6: Final answer
    x = 631,711.67

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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.