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Finding the Fourth Proportional to 548,997.87, 757,633.10 and 307,274.22

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Solution

The fourth proportional to 548,997.87, 757,633.10 and 307,274.22 is: 424,047.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,997.87 : 757,633.10 = 307,274.22 : x
  2. Step 2: Convert to fraction form
    548,997.87/757,633.10 = 307,274.22/x
  3. Step 3: Cross multiply
    548,997.87x = 757,633.10 × 307,274.22
  4. Step 4: Simplify right side
    548,997.87x = 232,801,118,312.31
  5. Step 5: Solve for x
    x = 232,801,118,312.31/548,997.87
  6. Step 6: Final answer
    x = 424,047.40

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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.