Home / 1,275,549.46-1,913,425.79-422,586.65

Finding the Fourth Proportional to 1,275,549.46, 1,913,425.79 and 422,586.65

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Solution

The fourth proportional to 1,275,549.46, 1,913,425.79 and 422,586.65 is: 633,913.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,275,549.46 : 1,913,425.79 = 422,586.65 : x
  2. Step 2: Convert to fraction form
    1,275,549.46/1,913,425.79 = 422,586.65/x
  3. Step 3: Cross multiply
    1,275,549.46x = 1,913,425.79 × 422,586.65
  4. Step 4: Simplify right side
    1,275,549.46x = 808,588,199,667.39
  5. Step 5: Solve for x
    x = 808,588,199,667.39/1,275,549.46
  6. Step 6: Final answer
    x = 633,913.64

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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.