Home / 786,083.34-1,179,374.19-280,633.11

Finding the Fourth Proportional to 786,083.34, 1,179,374.19 and 280,633.11

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Solution

The fourth proportional to 786,083.34, 1,179,374.19 and 280,633.11 is: 421,038.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,083.34 : 1,179,374.19 = 280,633.11 : x
  2. Step 2: Convert to fraction form
    786,083.34/1,179,374.19 = 280,633.11/x
  3. Step 3: Cross multiply
    786,083.34x = 1,179,374.19 × 280,633.11
  4. Step 4: Simplify right side
    786,083.34x = 330,971,446,793.43
  5. Step 5: Solve for x
    x = 330,971,446,793.43/786,083.34
  6. Step 6: Final answer
    x = 421,038.62

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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.