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Finding the Fourth Proportional to 400,082.80, 599,509.80 and 347,244.40

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Solution

The fourth proportional to 400,082.80, 599,509.80 and 347,244.40 is: 520,333.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,082.80 : 599,509.80 = 347,244.40 : x
  2. Step 2: Convert to fraction form
    400,082.80/599,509.80 = 347,244.40/x
  3. Step 3: Cross multiply
    400,082.80x = 599,509.80 × 347,244.40
  4. Step 4: Simplify right side
    400,082.80x = 208,176,420,795.12
  5. Step 5: Solve for x
    x = 208,176,420,795.12/400,082.80
  6. Step 6: Final answer
    x = 520,333.34

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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.