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Finding the Fourth Proportional to 520,192.80, 780,094.80 and 204,584.40

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Solution

The fourth proportional to 520,192.80, 780,094.80 and 204,584.40 is: 306,800.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,192.80 : 780,094.80 = 204,584.40 : x
  2. Step 2: Convert to fraction form
    520,192.80/780,094.80 = 204,584.40/x
  3. Step 3: Cross multiply
    520,192.80x = 780,094.80 × 204,584.40
  4. Step 4: Simplify right side
    520,192.80x = 159,595,226,601.12
  5. Step 5: Solve for x
    x = 159,595,226,601.12/520,192.80
  6. Step 6: Final answer
    x = 306,800.15

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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.