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Finding the Fourth Proportional to 543,192.75, 749,606.00 and 304,728.75

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Solution

The fourth proportional to 543,192.75, 749,606.00 and 304,728.75 is: 420,525.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,192.75 : 749,606.00 = 304,728.75 : x
  2. Step 2: Convert to fraction form
    543,192.75/749,606.00 = 304,728.75/x
  3. Step 3: Cross multiply
    543,192.75x = 749,606.00 × 304,728.75
  4. Step 4: Simplify right side
    543,192.75x = 228,426,497,848.86
  5. Step 5: Solve for x
    x = 228,426,497,848.86/543,192.75
  6. Step 6: Final answer
    x = 420,525.68

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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.