Home / 1,243,630.48-1,865,445.72-345,072.38

Finding the Fourth Proportional to 1,243,630.48, 1,865,445.72 and 345,072.38

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Solution

The fourth proportional to 1,243,630.48, 1,865,445.72 and 345,072.38 is: 517,608.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,630.48 : 1,865,445.72 = 345,072.38 : x
  2. Step 2: Convert to fraction form
    1,243,630.48/1,865,445.72 = 345,072.38/x
  3. Step 3: Cross multiply
    1,243,630.48x = 1,865,445.72 × 345,072.38
  4. Step 4: Simplify right side
    1,243,630.48x = 643,713,794,361.21
  5. Step 5: Solve for x
    x = 643,713,794,361.21/1,243,630.48
  6. Step 6: Final answer
    x = 517,608.57

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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.