Home / 657,126.40-984,523.20-407,516.80

Finding the Fourth Proportional to 657,126.40, 984,523.20 and 407,516.80

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Solution

The fourth proportional to 657,126.40, 984,523.20 and 407,516.80 is: 610,551.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,126.40 : 984,523.20 = 407,516.80 : x
  2. Step 2: Convert to fraction form
    657,126.40/984,523.20 = 407,516.80/x
  3. Step 3: Cross multiply
    657,126.40x = 984,523.20 × 407,516.80
  4. Step 4: Simplify right side
    657,126.40x = 401,209,743,989.76
  5. Step 5: Solve for x
    x = 401,209,743,989.76/657,126.40
  6. Step 6: Final answer
    x = 610,551.86

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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.