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Finding the Fourth Proportional to 447,840.84, 618,014.30 and 254,246.79

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Solution

The fourth proportional to 447,840.84, 618,014.30 and 254,246.79 is: 350,857.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,840.84 : 618,014.30 = 254,246.79 : x
  2. Step 2: Convert to fraction form
    447,840.84/618,014.30 = 254,246.79/x
  3. Step 3: Cross multiply
    447,840.84x = 618,014.30 × 254,246.79
  4. Step 4: Simplify right side
    447,840.84x = 157,128,150,677.86
  5. Step 5: Solve for x
    x = 157,128,150,677.86/447,840.84
  6. Step 6: Final answer
    x = 350,857.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.