Home / 1,438,350.72-1,984,971.62-785,012.41

Finding the Fourth Proportional to 1,438,350.72, 1,984,971.62 and 785,012.41

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Solution

The fourth proportional to 1,438,350.72, 1,984,971.62 and 785,012.41 is: 1,083,343.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,438,350.72 : 1,984,971.62 = 785,012.41 : x
  2. Step 2: Convert to fraction form
    1,438,350.72/1,984,971.62 = 785,012.41/x
  3. Step 3: Cross multiply
    1,438,350.72x = 1,984,971.62 × 785,012.41
  4. Step 4: Simplify right side
    1,438,350.72x = 1,558,227,359,641.55
  5. Step 5: Solve for x
    x = 1,558,227,359,641.55/1,438,350.72
  6. Step 6: Final answer
    x = 1,083,343.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.