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Finding the Fourth Proportional to 437,893.70, 603,775.49 and 308,853.41

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Solution

The fourth proportional to 437,893.70, 603,775.49 and 308,853.41 is: 425,852.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,893.70 : 603,775.49 = 308,853.41 : x
  2. Step 2: Convert to fraction form
    437,893.70/603,775.49 = 308,853.41/x
  3. Step 3: Cross multiply
    437,893.70x = 603,775.49 × 308,853.41
  4. Step 4: Simplify right side
    437,893.70x = 186,478,114,397.78
  5. Step 5: Solve for x
    x = 186,478,114,397.78/437,893.70
  6. Step 6: Final answer
    x = 425,852.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.