Home / 866,391.86-1,299,311.35-297,635.81

Finding the Fourth Proportional to 866,391.86, 1,299,311.35 and 297,635.81

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Solution

The fourth proportional to 866,391.86, 1,299,311.35 and 297,635.81 is: 446,358.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,391.86 : 1,299,311.35 = 297,635.81 : x
  2. Step 2: Convert to fraction form
    866,391.86/1,299,311.35 = 297,635.81/x
  3. Step 3: Cross multiply
    866,391.86x = 1,299,311.35 × 297,635.81
  4. Step 4: Simplify right side
    866,391.86x = 386,721,578,858.80
  5. Step 5: Solve for x
    x = 386,721,578,858.80/866,391.86
  6. Step 6: Final answer
    x = 446,358.74

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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.