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Finding the Fourth Proportional to 547,302.80, 820,954.20 and 347,848.40

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Solution

The fourth proportional to 547,302.80, 820,954.20 and 347,848.40 is: 521,772.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,302.80 : 820,954.20 = 347,848.40 : x
  2. Step 2: Convert to fraction form
    547,302.80/820,954.20 = 347,848.40/x
  3. Step 3: Cross multiply
    547,302.80x = 820,954.20 × 347,848.40
  4. Step 4: Simplify right side
    547,302.80x = 285,567,604,943.28
  5. Step 5: Solve for x
    x = 285,567,604,943.28/547,302.80
  6. Step 6: Final answer
    x = 521,772.60

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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.