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Finding the Fourth Proportional to 528,054.80, 792,082.20 and 172,983.20

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Solution

The fourth proportional to 528,054.80, 792,082.20 and 172,983.20 is: 259,474.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,054.80 : 792,082.20 = 172,983.20 : x
  2. Step 2: Convert to fraction form
    528,054.80/792,082.20 = 172,983.20/x
  3. Step 3: Cross multiply
    528,054.80x = 792,082.20 × 172,983.20
  4. Step 4: Simplify right side
    528,054.80x = 137,016,913,619.04
  5. Step 5: Solve for x
    x = 137,016,913,619.04/528,054.80
  6. Step 6: Final answer
    x = 259,474.80

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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.