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Finding the Fourth Proportional to 547,346.63, 755,248.23 and 305,590.38

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Solution

The fourth proportional to 547,346.63, 755,248.23 and 305,590.38 is: 421,664.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,346.63 : 755,248.23 = 305,590.38 : x
  2. Step 2: Convert to fraction form
    547,346.63/755,248.23 = 305,590.38/x
  3. Step 3: Cross multiply
    547,346.63x = 755,248.23 × 305,590.38
  4. Step 4: Simplify right side
    547,346.63x = 230,796,593,600.03
  5. Step 5: Solve for x
    x = 230,796,593,600.03/547,346.63
  6. Step 6: Final answer
    x = 421,664.41

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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.