Home / 563,651.12-777,836.90-309,002.51

Finding the Fourth Proportional to 563,651.12, 777,836.90 and 309,002.51

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Solution

The fourth proportional to 563,651.12, 777,836.90 and 309,002.51 is: 426,422.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,651.12 : 777,836.90 = 309,002.51 : x
  2. Step 2: Convert to fraction form
    563,651.12/777,836.90 = 309,002.51/x
  3. Step 3: Cross multiply
    563,651.12x = 777,836.90 × 309,002.51
  4. Step 4: Simplify right side
    563,651.12x = 240,353,551,353.94
  5. Step 5: Solve for x
    x = 240,353,551,353.94/563,651.12
  6. Step 6: Final answer
    x = 426,422.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.