Home / 759,214.81-1,138,667.30-279,277.66

Finding the Fourth Proportional to 759,214.81, 1,138,667.30 and 279,277.66

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Solution

The fourth proportional to 759,214.81, 1,138,667.30 and 279,277.66 is: 418,859.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,214.81 : 1,138,667.30 = 279,277.66 : x
  2. Step 2: Convert to fraction form
    759,214.81/1,138,667.30 = 279,277.66/x
  3. Step 3: Cross multiply
    759,214.81x = 1,138,667.30 × 279,277.66
  4. Step 4: Simplify right side
    759,214.81x = 318,004,331,972.79
  5. Step 5: Solve for x
    x = 318,004,331,972.79/759,214.81
  6. Step 6: Final answer
    x = 418,859.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.