Home / 987,641.55-1,481,580.93-347,812.96

Finding the Fourth Proportional to 987,641.55, 1,481,580.93 and 347,812.96

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Solution

The fourth proportional to 987,641.55, 1,481,580.93 and 347,812.96 is: 521,761.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,641.55 : 1,481,580.93 = 347,812.96 : x
  2. Step 2: Convert to fraction form
    987,641.55/1,481,580.93 = 347,812.96/x
  3. Step 3: Cross multiply
    987,641.55x = 1,481,580.93 × 347,812.96
  4. Step 4: Simplify right side
    987,641.55x = 515,313,051,576.21
  5. Step 5: Solve for x
    x = 515,313,051,576.21/987,641.55
  6. Step 6: Final answer
    x = 521,761.21

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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.