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Finding the Fourth Proportional to 541,404.37, 747,218.10 and 311,917.96

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Solution

The fourth proportional to 541,404.37, 747,218.10 and 311,917.96 is: 430,492.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,404.37 : 747,218.10 = 311,917.96 : x
  2. Step 2: Convert to fraction form
    541,404.37/747,218.10 = 311,917.96/x
  3. Step 3: Cross multiply
    541,404.37x = 747,218.10 × 311,917.96
  4. Step 4: Simplify right side
    541,404.37x = 233,070,745,427.08
  5. Step 5: Solve for x
    x = 233,070,745,427.08/541,404.37
  6. Step 6: Final answer
    x = 430,492.91

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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.