Home / 825,931.62-1,238,401.71-286,009.92

Finding the Fourth Proportional to 825,931.62, 1,238,401.71 and 286,009.92

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Solution

The fourth proportional to 825,931.62, 1,238,401.71 and 286,009.92 is: 428,843.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,931.62 : 1,238,401.71 = 286,009.92 : x
  2. Step 2: Convert to fraction form
    825,931.62/1,238,401.71 = 286,009.92/x
  3. Step 3: Cross multiply
    825,931.62x = 1,238,401.71 × 286,009.92
  4. Step 4: Simplify right side
    825,931.62x = 354,195,174,004.96
  5. Step 5: Solve for x
    x = 354,195,174,004.96/825,931.62
  6. Step 6: Final answer
    x = 428,843.22

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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.