Home / 878,901.89-1,318,216.84-339,079.43

Finding the Fourth Proportional to 878,901.89, 1,318,216.84 and 339,079.43

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Solution

The fourth proportional to 878,901.89, 1,318,216.84 and 339,079.43 is: 508,566.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,901.89 : 1,318,216.84 = 339,079.43 : x
  2. Step 2: Convert to fraction form
    878,901.89/1,318,216.84 = 339,079.43/x
  3. Step 3: Cross multiply
    878,901.89x = 1,318,216.84 × 339,079.43
  4. Step 4: Simplify right side
    878,901.89x = 446,980,213,028.20
  5. Step 5: Solve for x
    x = 446,980,213,028.20/878,901.89
  6. Step 6: Final answer
    x = 508,566.68

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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.