Home / 1,438,612.80-1,985,144.24-793,991.45

Finding the Fourth Proportional to 1,438,612.80, 1,985,144.24 and 793,991.45

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Solution

The fourth proportional to 1,438,612.80, 1,985,144.24 and 793,991.45 is: 1,095,630.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,438,612.80 : 1,985,144.24 = 793,991.45 : x
  2. Step 2: Convert to fraction form
    1,438,612.80/1,985,144.24 = 793,991.45/x
  3. Step 3: Cross multiply
    1,438,612.80x = 1,985,144.24 × 793,991.45
  4. Step 4: Simplify right side
    1,438,612.80x = 1,576,187,539,681.07
  5. Step 5: Solve for x
    x = 1,576,187,539,681.07/1,438,612.80
  6. Step 6: Final answer
    x = 1,095,630.14

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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.