Home / 1,423,388.80-1,964,776.96-879,941.44

Finding the Fourth Proportional to 1,423,388.80, 1,964,776.96 and 879,941.44

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Solution

The fourth proportional to 1,423,388.80, 1,964,776.96 and 879,941.44 is: 1,214,628.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,423,388.80 : 1,964,776.96 = 879,941.44 : x
  2. Step 2: Convert to fraction form
    1,423,388.80/1,964,776.96 = 879,941.44/x
  3. Step 3: Cross multiply
    1,423,388.80x = 1,964,776.96 × 879,941.44
  4. Step 4: Simplify right side
    1,423,388.80x = 1,728,888,667,461.22
  5. Step 5: Solve for x
    x = 1,728,888,667,461.22/1,423,388.80
  6. Step 6: Final answer
    x = 1,214,628.55

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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.