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Finding the Fourth Proportional to 547,748.80, 820,240.80 and 437,156.80

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Solution

The fourth proportional to 547,748.80, 820,240.80 and 437,156.80 is: 654,631.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,748.80 : 820,240.80 = 437,156.80 : x
  2. Step 2: Convert to fraction form
    547,748.80/820,240.80 = 437,156.80/x
  3. Step 3: Cross multiply
    547,748.80x = 820,240.80 × 437,156.80
  4. Step 4: Simplify right side
    547,748.80x = 358,573,843,357.44
  5. Step 5: Solve for x
    x = 358,573,843,357.44/547,748.80
  6. Step 6: Final answer
    x = 654,631.91

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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.