Home / 457,847.20-686,187.60-333,042.40

Finding the Fourth Proportional to 457,847.20, 686,187.60 and 333,042.40

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Solution

The fourth proportional to 457,847.20, 686,187.60 and 333,042.40 is: 499,139.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,847.20 : 686,187.60 = 333,042.40 : x
  2. Step 2: Convert to fraction form
    457,847.20/686,187.60 = 333,042.40/x
  3. Step 3: Cross multiply
    457,847.20x = 686,187.60 × 333,042.40
  4. Step 4: Simplify right side
    457,847.20x = 228,529,565,154.24
  5. Step 5: Solve for x
    x = 228,529,565,154.24/457,847.20
  6. Step 6: Final answer
    x = 499,139.37

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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.