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Finding the Fourth Proportional to 494,553.40, 742,607.70 and 284,601.40

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Solution

The fourth proportional to 494,553.40, 742,607.70 and 284,601.40 is: 427,349.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,553.40 : 742,607.70 = 284,601.40 : x
  2. Step 2: Convert to fraction form
    494,553.40/742,607.70 = 284,601.40/x
  3. Step 3: Cross multiply
    494,553.40x = 742,607.70 × 284,601.40
  4. Step 4: Simplify right side
    494,553.40x = 211,347,191,070.78
  5. Step 5: Solve for x
    x = 211,347,191,070.78/494,553.40
  6. Step 6: Final answer
    x = 427,349.59

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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.