Home / 1,208,259.72-1,667,341.34-664,418.43

Finding the Fourth Proportional to 1,208,259.72, 1,667,341.34 and 664,418.43

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Solution

The fourth proportional to 1,208,259.72, 1,667,341.34 and 664,418.43 is: 916,866.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,259.72 : 1,667,341.34 = 664,418.43 : x
  2. Step 2: Convert to fraction form
    1,208,259.72/1,667,341.34 = 664,418.43/x
  3. Step 3: Cross multiply
    1,208,259.72x = 1,667,341.34 × 664,418.43
  4. Step 4: Simplify right side
    1,208,259.72x = 1,107,812,312,074.80
  5. Step 5: Solve for x
    x = 1,107,812,312,074.80/1,208,259.72
  6. Step 6: Final answer
    x = 916,866.05

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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.