Home / 743,147.67-1,114,436.28-316,412.94

Finding the Fourth Proportional to 743,147.67, 1,114,436.28 and 316,412.94

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Solution

The fourth proportional to 743,147.67, 1,114,436.28 and 316,412.94 is: 474,497.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,147.67 : 1,114,436.28 = 316,412.94 : x
  2. Step 2: Convert to fraction form
    743,147.67/1,114,436.28 = 316,412.94/x
  3. Step 3: Cross multiply
    743,147.67x = 1,114,436.28 × 316,412.94
  4. Step 4: Simplify right side
    743,147.67x = 352,622,065,163.15
  5. Step 5: Solve for x
    x = 352,622,065,163.15/743,147.67
  6. Step 6: Final answer
    x = 474,497.97

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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.