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Finding the Fourth Proportional to 548,735.38, 757,284.15 and 307,003.48

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Solution

The fourth proportional to 548,735.38, 757,284.15 and 307,003.48 is: 423,681.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,735.38 : 757,284.15 = 307,003.48 : x
  2. Step 2: Convert to fraction form
    548,735.38/757,284.15 = 307,003.48/x
  3. Step 3: Cross multiply
    548,735.38x = 757,284.15 × 307,003.48
  4. Step 4: Simplify right side
    548,735.38x = 232,488,869,398.84
  5. Step 5: Solve for x
    x = 232,488,869,398.84/548,735.38
  6. Step 6: Final answer
    x = 423,681.21

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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.