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Finding the Fourth Proportional to 547,379.66, 755,346.30 and 302,353.58

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Solution

The fourth proportional to 547,379.66, 755,346.30 and 302,353.58 is: 417,227.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,379.66 : 755,346.30 = 302,353.58 : x
  2. Step 2: Convert to fraction form
    547,379.66/755,346.30 = 302,353.58/x
  3. Step 3: Cross multiply
    547,379.66x = 755,346.30 × 302,353.58
  4. Step 4: Simplify right side
    547,379.66x = 228,381,657,944.75
  5. Step 5: Solve for x
    x = 228,381,657,944.75/547,379.66
  6. Step 6: Final answer
    x = 417,227.15

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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.