Home / 1,369,360.80-1,889,719.52-749,173.76

Finding the Fourth Proportional to 1,369,360.80, 1,889,719.52 and 749,173.76

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Solution

The fourth proportional to 1,369,360.80, 1,889,719.52 and 749,173.76 is: 1,033,860.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,369,360.80 : 1,889,719.52 = 749,173.76 : x
  2. Step 2: Convert to fraction form
    1,369,360.80/1,889,719.52 = 749,173.76/x
  3. Step 3: Cross multiply
    1,369,360.80x = 1,889,719.52 × 749,173.76
  4. Step 4: Simplify right side
    1,369,360.80x = 1,415,728,278,143.80
  5. Step 5: Solve for x
    x = 1,415,728,278,143.80/1,369,360.80
  6. Step 6: Final answer
    x = 1,033,860.67

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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.