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Finding the Fourth Proportional to 362,404.70, 543,607.05 and 311,666.30

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Solution

The fourth proportional to 362,404.70, 543,607.05 and 311,666.30 is: 467,499.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,404.70 : 543,607.05 = 311,666.30 : x
  2. Step 2: Convert to fraction form
    362,404.70/543,607.05 = 311,666.30/x
  3. Step 3: Cross multiply
    362,404.70x = 543,607.05 × 311,666.30
  4. Step 4: Simplify right side
    362,404.70x = 169,423,997,927.42
  5. Step 5: Solve for x
    x = 169,423,997,927.42/362,404.70
  6. Step 6: Final answer
    x = 467,499.45

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Similar ratio
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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.