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Finding the Fourth Proportional to 548,951.64, 757,511.08 and 307,189.32

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Solution

The fourth proportional to 548,951.64, 757,511.08 and 307,189.32 is: 423,897.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,951.64 : 757,511.08 = 307,189.32 : x
  2. Step 2: Convert to fraction form
    548,951.64/757,511.08 = 307,189.32/x
  3. Step 3: Cross multiply
    548,951.64x = 757,511.08 × 307,189.32
  4. Step 4: Simplify right side
    548,951.64x = 232,699,313,557.67
  5. Step 5: Solve for x
    x = 232,699,313,557.67/548,951.64
  6. Step 6: Final answer
    x = 423,897.66

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Similar ratio
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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.