Home / 322,521.03-483,790.05-85,864.14

Finding the Fourth Proportional to 322,521.03, 483,790.05 and 85,864.14

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Solution

The fourth proportional to 322,521.03, 483,790.05 and 85,864.14 is: 128,798.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,521.03 : 483,790.05 = 85,864.14 : x
  2. Step 2: Convert to fraction form
    322,521.03/483,790.05 = 85,864.14/x
  3. Step 3: Cross multiply
    322,521.03x = 483,790.05 × 85,864.14
  4. Step 4: Simplify right side
    322,521.03x = 41,540,216,583.81
  5. Step 5: Solve for x
    x = 41,540,216,583.81/322,521.03
  6. Step 6: Final answer
    x = 128,798.47

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1.5x scale

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.