Home / 647,823.72-970,822.12-305,902.32

Finding the Fourth Proportional to 647,823.72, 970,822.12 and 305,902.32

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Solution

The fourth proportional to 647,823.72, 970,822.12 and 305,902.32 is: 458,422.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,823.72 : 970,822.12 = 305,902.32 : x
  2. Step 2: Convert to fraction form
    647,823.72/970,822.12 = 305,902.32/x
  3. Step 3: Cross multiply
    647,823.72x = 970,822.12 × 305,902.32
  4. Step 4: Simplify right side
    647,823.72x = 296,976,738,815.32
  5. Step 5: Solve for x
    x = 296,976,738,815.32/647,823.72
  6. Step 6: Final answer
    x = 458,422.14

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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.