Home / 1,369,352.78-1,889,708.50-749,165.75

Finding the Fourth Proportional to 1,369,352.78, 1,889,708.50 and 749,165.75

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Solution

The fourth proportional to 1,369,352.78, 1,889,708.50 and 749,165.75 is: 1,033,849.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,369,352.78 : 1,889,708.50 = 749,165.75 : x
  2. Step 2: Convert to fraction form
    1,369,352.78/1,889,708.50 = 749,165.75/x
  3. Step 3: Cross multiply
    1,369,352.78x = 1,889,708.50 × 749,165.75
  4. Step 4: Simplify right side
    1,369,352.78x = 1,415,704,885,683.88
  5. Step 5: Solve for x
    x = 1,415,704,885,683.88/1,369,352.78
  6. Step 6: Final answer
    x = 1,033,849.65

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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.