Home / 996,420.80-1,494,631.20-331,572.80

Finding the Fourth Proportional to 996,420.80, 1,494,631.20 and 331,572.80

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Solution

The fourth proportional to 996,420.80, 1,494,631.20 and 331,572.80 is: 497,359.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    996,420.80 : 1,494,631.20 = 331,572.80 : x
  2. Step 2: Convert to fraction form
    996,420.80/1,494,631.20 = 331,572.80/x
  3. Step 3: Cross multiply
    996,420.80x = 1,494,631.20 × 331,572.80
  4. Step 4: Simplify right side
    996,420.80x = 495,579,051,951.36
  5. Step 5: Solve for x
    x = 495,579,051,951.36/996,420.80
  6. Step 6: Final answer
    x = 497,359.20

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Double scale
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Similar ratio
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1.5x scale

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.