Home / 1,418,697.80-1,957,882.20-774,128.96

Finding the Fourth Proportional to 1,418,697.80, 1,957,882.20 and 774,128.96

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Solution

The fourth proportional to 1,418,697.80, 1,957,882.20 and 774,128.96 is: 1,068,341.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,418,697.80 : 1,957,882.20 = 774,128.96 : x
  2. Step 2: Convert to fraction form
    1,418,697.80/1,957,882.20 = 774,128.96/x
  3. Step 3: Cross multiply
    1,418,697.80x = 1,957,882.20 × 774,128.96
  4. Step 4: Simplify right side
    1,418,697.80x = 1,515,653,311,288.51
  5. Step 5: Solve for x
    x = 1,515,653,311,288.51/1,418,697.80
  6. Step 6: Final answer
    x = 1,068,341.20

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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.