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Finding the Fourth Proportional to 647,502.20, 970,961.70 and 248,010.20

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Solution

The fourth proportional to 647,502.20, 970,961.70 and 248,010.20 is: 371,903.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,502.20 : 970,961.70 = 248,010.20 : x
  2. Step 2: Convert to fraction form
    647,502.20/970,961.70 = 248,010.20/x
  3. Step 3: Cross multiply
    647,502.20x = 970,961.70 × 248,010.20
  4. Step 4: Simplify right side
    647,502.20x = 240,808,405,409.34
  5. Step 5: Solve for x
    x = 240,808,405,409.34/647,502.20
  6. Step 6: Final answer
    x = 371,903.61

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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.