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Finding the Fourth Proportional to 534,420.86, 737,486.30 and 304,973.91

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Solution

The fourth proportional to 534,420.86, 737,486.30 and 304,973.91 is: 420,855.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,420.86 : 737,486.30 = 304,973.91 : x
  2. Step 2: Convert to fraction form
    534,420.86/737,486.30 = 304,973.91/x
  3. Step 3: Cross multiply
    534,420.86x = 737,486.30 × 304,973.91
  4. Step 4: Simplify right side
    534,420.86x = 224,914,081,244.87
  5. Step 5: Solve for x
    x = 224,914,081,244.87/534,420.86
  6. Step 6: Final answer
    x = 420,855.73

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Double scale
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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.