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Finding the Fourth Proportional to 445,953, 668,922.72 and 309,049.80

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Solution

The fourth proportional to 445,953, 668,922.72 and 309,049.80 is: 463,570.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,953 : 668,922.72 = 309,049.80 : x
  2. Step 2: Convert to fraction form
    445,953/668,922.72 = 309,049.80/x
  3. Step 3: Cross multiply
    445,953x = 668,922.72 × 309,049.80
  4. Step 4: Simplify right side
    445,953x = 206,730,432,831.46
  5. Step 5: Solve for x
    x = 206,730,432,831.46/445,953
  6. Step 6: Final answer
    x = 463,570.00

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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.