Home / 1,778,309.17-2,667,470.75-430,469.61

Finding the Fourth Proportional to 1,778,309.17, 2,667,470.75 and 430,469.61

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Solution

The fourth proportional to 1,778,309.17, 2,667,470.75 and 430,469.61 is: 645,706.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,778,309.17 : 2,667,470.75 = 430,469.61 : x
  2. Step 2: Convert to fraction form
    1,778,309.17/2,667,470.75 = 430,469.61/x
  3. Step 3: Cross multiply
    1,778,309.17x = 2,667,470.75 × 430,469.61
  4. Step 4: Simplify right side
    1,778,309.17x = 1,148,265,094,515.08
  5. Step 5: Solve for x
    x = 1,148,265,094,515.08/1,778,309.17
  6. Step 6: Final answer
    x = 645,706.11

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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.