Home / 3,218,021.20-4,827,031.80-974,159.20

Finding the Fourth Proportional to 3,218,021.20, 4,827,031.80 and 974,159.20

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Solution

The fourth proportional to 3,218,021.20, 4,827,031.80 and 974,159.20 is: 1,461,238.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,218,021.20 : 4,827,031.80 = 974,159.20 : x
  2. Step 2: Convert to fraction form
    3,218,021.20/4,827,031.80 = 974,159.20/x
  3. Step 3: Cross multiply
    3,218,021.20x = 4,827,031.80 × 974,159.20
  4. Step 4: Simplify right side
    3,218,021.20x = 4,702,297,436,662.56
  5. Step 5: Solve for x
    x = 4,702,297,436,662.56/3,218,021.20
  6. Step 6: Final answer
    x = 1,461,238.80

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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.