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Finding the Fourth Proportional to 590,800.25, 815,300.19 and 322,528.25

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Solution

The fourth proportional to 590,800.25, 815,300.19 and 322,528.25 is: 445,086.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,800.25 : 815,300.19 = 322,528.25 : x
  2. Step 2: Convert to fraction form
    590,800.25/815,300.19 = 322,528.25/x
  3. Step 3: Cross multiply
    590,800.25x = 815,300.19 × 322,528.25
  4. Step 4: Simplify right side
    590,800.25x = 262,957,346,753.10
  5. Step 5: Solve for x
    x = 262,957,346,753.10/590,800.25
  6. Step 6: Final answer
    x = 445,086.72

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.