Home / 1,423,791.30-1,964,832.75-779,211.12

Finding the Fourth Proportional to 1,423,791.30, 1,964,832.75 and 779,211.12

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Solution

The fourth proportional to 1,423,791.30, 1,964,832.75 and 779,211.12 is: 1,075,311.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,423,791.30 : 1,964,832.75 = 779,211.12 : x
  2. Step 2: Convert to fraction form
    1,423,791.30/1,964,832.75 = 779,211.12/x
  3. Step 3: Cross multiply
    1,423,791.30x = 1,964,832.75 × 779,211.12
  4. Step 4: Simplify right side
    1,423,791.30x = 1,531,019,527,740.18
  5. Step 5: Solve for x
    x = 1,531,019,527,740.18/1,423,791.30
  6. Step 6: Final answer
    x = 1,075,311.76

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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.