Home / 876,056.50-1,314,226.91-343,288.72

Finding the Fourth Proportional to 876,056.50, 1,314,226.91 and 343,288.72

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Solution

The fourth proportional to 876,056.50, 1,314,226.91 and 343,288.72 is: 514,988.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,056.50 : 1,314,226.91 = 343,288.72 : x
  2. Step 2: Convert to fraction form
    876,056.50/1,314,226.91 = 343,288.72/x
  3. Step 3: Cross multiply
    876,056.50x = 1,314,226.91 × 343,288.72
  4. Step 4: Simplify right side
    876,056.50x = 451,159,273,723.46
  5. Step 5: Solve for x
    x = 451,159,273,723.46/876,056.50
  6. Step 6: Final answer
    x = 514,988.79

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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.