Home / 1,369,361.80-1,889,720.90-749,174.76

Finding the Fourth Proportional to 1,369,361.80, 1,889,720.90 and 749,174.76

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Solution

The fourth proportional to 1,369,361.80, 1,889,720.90 and 749,174.76 is: 1,033,862.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,369,361.80 : 1,889,720.90 = 749,174.76 : x
  2. Step 2: Convert to fraction form
    1,369,361.80/1,889,720.90 = 749,174.76/x
  3. Step 3: Cross multiply
    1,369,361.80x = 1,889,720.90 × 749,174.76
  4. Step 4: Simplify right side
    1,369,361.80x = 1,415,731,201,724.48
  5. Step 5: Solve for x
    x = 1,415,731,201,724.48/1,369,361.80
  6. Step 6: Final answer
    x = 1,033,862.05

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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.