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Finding the Fourth Proportional to 637,280.70, 955,921.05 and 548,634.30

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Solution

The fourth proportional to 637,280.70, 955,921.05 and 548,634.30 is: 822,951.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,280.70 : 955,921.05 = 548,634.30 : x
  2. Step 2: Convert to fraction form
    637,280.70/955,921.05 = 548,634.30/x
  3. Step 3: Cross multiply
    637,280.70x = 955,921.05 × 548,634.30
  4. Step 4: Simplify right side
    637,280.70x = 524,451,076,122.02
  5. Step 5: Solve for x
    x = 524,451,076,122.02/637,280.70
  6. Step 6: Final answer
    x = 822,951.45

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Double scale
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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.