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Finding the Fourth Proportional to 2,895,859.60, 4,345,344.60 and 1,213,133.20

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Solution

The fourth proportional to 2,895,859.60, 4,345,344.60 and 1,213,133.20 is: 1,820,351.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,895,859.60 : 4,345,344.60 = 1,213,133.20 : x
  2. Step 2: Convert to fraction form
    2,895,859.60/4,345,344.60 = 1,213,133.20/x
  3. Step 3: Cross multiply
    2,895,859.60x = 4,345,344.60 × 1,213,133.20
  4. Step 4: Simplify right side
    2,895,859.60x = 5,271,481,799,700.72
  5. Step 5: Solve for x
    x = 5,271,481,799,700.72/2,895,859.60
  6. Step 6: Final answer
    x = 1,820,351.30

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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.