Home / 1,367,890.16-1,887,649.80-764,278.16

Finding the Fourth Proportional to 1,367,890.16, 1,887,649.80 and 764,278.16

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Solution

The fourth proportional to 1,367,890.16, 1,887,649.80 and 764,278.16 is: 1,054,682.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,367,890.16 : 1,887,649.80 = 764,278.16 : x
  2. Step 2: Convert to fraction form
    1,367,890.16/1,887,649.80 = 764,278.16/x
  3. Step 3: Cross multiply
    1,367,890.16x = 1,887,649.80 × 764,278.16
  4. Step 4: Simplify right side
    1,367,890.16x = 1,442,689,515,868.37
  5. Step 5: Solve for x
    x = 1,442,689,515,868.37/1,367,890.16
  6. Step 6: Final answer
    x = 1,054,682.28

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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.