Home / 639,201.62-957,621.45-322,903.10

Finding the Fourth Proportional to 639,201.62, 957,621.45 and 322,903.10

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Solution

The fourth proportional to 639,201.62, 957,621.45 and 322,903.10 is: 483,758.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,201.62 : 957,621.45 = 322,903.10 : x
  2. Step 2: Convert to fraction form
    639,201.62/957,621.45 = 322,903.10/x
  3. Step 3: Cross multiply
    639,201.62x = 957,621.45 × 322,903.10
  4. Step 4: Simplify right side
    639,201.62x = 309,218,934,831.50
  5. Step 5: Solve for x
    x = 309,218,934,831.50/639,201.62
  6. Step 6: Final answer
    x = 483,758.06

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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.