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Finding the Fourth Proportional to 3,865,019.20, 5,797,528.80 and 2,428,014.40

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Solution

The fourth proportional to 3,865,019.20, 5,797,528.80 and 2,428,014.40 is: 3,642,021.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,865,019.20 : 5,797,528.80 = 2,428,014.40 : x
  2. Step 2: Convert to fraction form
    3,865,019.20/5,797,528.80 = 2,428,014.40/x
  3. Step 3: Cross multiply
    3,865,019.20x = 5,797,528.80 × 2,428,014.40
  4. Step 4: Simplify right side
    3,865,019.20x = 14,076,483,410,814.72
  5. Step 5: Solve for x
    x = 14,076,483,410,814.72/3,865,019.20
  6. Step 6: Final answer
    x = 3,642,021.60

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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.