Home / 1,208,261.69-1,667,344.05-664,420.40

Finding the Fourth Proportional to 1,208,261.69, 1,667,344.05 and 664,420.40

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Solution

The fourth proportional to 1,208,261.69, 1,667,344.05 and 664,420.40 is: 916,868.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,261.69 : 1,667,344.05 = 664,420.40 : x
  2. Step 2: Convert to fraction form
    1,208,261.69/1,667,344.05 = 664,420.40/x
  3. Step 3: Cross multiply
    1,208,261.69x = 1,667,344.05 × 664,420.40
  4. Step 4: Simplify right side
    1,208,261.69x = 1,107,817,392,301.90
  5. Step 5: Solve for x
    x = 1,107,817,392,301.90/1,208,261.69
  6. Step 6: Final answer
    x = 916,868.76

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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.