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Finding the Fourth Proportional to 536,471.40, 803,540.70 and 325,741.80

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Solution

The fourth proportional to 536,471.40, 803,540.70 and 325,741.80 is: 487,904.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,471.40 : 803,540.70 = 325,741.80 : x
  2. Step 2: Convert to fraction form
    536,471.40/803,540.70 = 325,741.80/x
  3. Step 3: Cross multiply
    536,471.40x = 803,540.70 × 325,741.80
  4. Step 4: Simplify right side
    536,471.40x = 261,746,793,991.26
  5. Step 5: Solve for x
    x = 261,746,793,991.26/536,471.40
  6. Step 6: Final answer
    x = 487,904.47

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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.