Home / 578,004.40-867,006.60-311,627.80

Finding the Fourth Proportional to 578,004.40, 867,006.60 and 311,627.80

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Solution

The fourth proportional to 578,004.40, 867,006.60 and 311,627.80 is: 467,441.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,004.40 : 867,006.60 = 311,627.80 : x
  2. Step 2: Convert to fraction form
    578,004.40/867,006.60 = 311,627.80/x
  3. Step 3: Cross multiply
    578,004.40x = 867,006.60 × 311,627.80
  4. Step 4: Simplify right side
    578,004.40x = 270,183,359,343.48
  5. Step 5: Solve for x
    x = 270,183,359,343.48/578,004.40
  6. Step 6: Final answer
    x = 467,441.70

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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.