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Finding the Fourth Proportional to 329,702.70, 494,554.05 and 307,584.30

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Solution

The fourth proportional to 329,702.70, 494,554.05 and 307,584.30 is: 461,376.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,702.70 : 494,554.05 = 307,584.30 : x
  2. Step 2: Convert to fraction form
    329,702.70/494,554.05 = 307,584.30/x
  3. Step 3: Cross multiply
    329,702.70x = 494,554.05 × 307,584.30
  4. Step 4: Simplify right side
    329,702.70x = 152,117,061,281.42
  5. Step 5: Solve for x
    x = 152,117,061,281.42/329,702.70
  6. Step 6: Final answer
    x = 461,376.45

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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.