Home / 409,923.20-614,884.80-251,638.40

Finding the Fourth Proportional to 409,923.20, 614,884.80 and 251,638.40

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Solution

The fourth proportional to 409,923.20, 614,884.80 and 251,638.40 is: 377,457.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,923.20 : 614,884.80 = 251,638.40 : x
  2. Step 2: Convert to fraction form
    409,923.20/614,884.80 = 251,638.40/x
  3. Step 3: Cross multiply
    409,923.20x = 614,884.80 × 251,638.40
  4. Step 4: Simplify right side
    409,923.20x = 154,728,627,256.32
  5. Step 5: Solve for x
    x = 154,728,627,256.32/409,923.20
  6. Step 6: Final answer
    x = 377,457.60

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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.