Home / 1,208,141.79-1,667,278.50-664,318.98

Finding the Fourth Proportional to 1,208,141.79, 1,667,278.50 and 664,318.98

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Solution

The fourth proportional to 1,208,141.79, 1,667,278.50 and 664,318.98 is: 916,783.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,141.79 : 1,667,278.50 = 664,318.98 : x
  2. Step 2: Convert to fraction form
    1,208,141.79/1,667,278.50 = 664,318.98/x
  3. Step 3: Cross multiply
    1,208,141.79x = 1,667,278.50 × 664,318.98
  4. Step 4: Simplify right side
    1,208,141.79x = 1,107,604,752,495.93
  5. Step 5: Solve for x
    x = 1,107,604,752,495.93/1,208,141.79
  6. Step 6: Final answer
    x = 916,783.74

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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.