Home / 868,361.18-1,302,172.70-355,672.86

Finding the Fourth Proportional to 868,361.18, 1,302,172.70 and 355,672.86

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Solution

The fourth proportional to 868,361.18, 1,302,172.70 and 355,672.86 is: 533,358.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,361.18 : 1,302,172.70 = 355,672.86 : x
  2. Step 2: Convert to fraction form
    868,361.18/1,302,172.70 = 355,672.86/x
  3. Step 3: Cross multiply
    868,361.18x = 1,302,172.70 × 355,672.86
  4. Step 4: Simplify right side
    868,361.18x = 463,147,481,761.41
  5. Step 5: Solve for x
    x = 463,147,481,761.41/868,361.18
  6. Step 6: Final answer
    x = 533,358.12

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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.