Home / 1,405,381.40-1,939,426.98-760,801.59

Finding the Fourth Proportional to 1,405,381.40, 1,939,426.98 and 760,801.59

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Solution

The fourth proportional to 1,405,381.40, 1,939,426.98 and 760,801.59 is: 1,049,906.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,381.40 : 1,939,426.98 = 760,801.59 : x
  2. Step 2: Convert to fraction form
    1,405,381.40/1,939,426.98 = 760,801.59/x
  3. Step 3: Cross multiply
    1,405,381.40x = 1,939,426.98 × 760,801.59
  4. Step 4: Simplify right side
    1,405,381.40x = 1,475,519,130,072.90
  5. Step 5: Solve for x
    x = 1,475,519,130,072.90/1,405,381.40
  6. Step 6: Final answer
    x = 1,049,906.55

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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.