Home / 1,118,940.86-1,679,874.76-664,361.96

Finding the Fourth Proportional to 1,118,940.86, 1,679,874.76 and 664,361.96

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Solution

The fourth proportional to 1,118,940.86, 1,679,874.76 and 664,361.96 is: 997,411.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,118,940.86 : 1,679,874.76 = 664,361.96 : x
  2. Step 2: Convert to fraction form
    1,118,940.86/1,679,874.76 = 664,361.96/x
  3. Step 3: Cross multiply
    1,118,940.86x = 1,679,874.76 × 664,361.96
  4. Step 4: Simplify right side
    1,118,940.86x = 1,116,044,888,108.13
  5. Step 5: Solve for x
    x = 1,116,044,888,108.13/1,118,940.86
  6. Step 6: Final answer
    x = 997,411.86

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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.