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Finding the Fourth Proportional to 547,307.04, 755,276.64 and 305,593.80

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Solution

The fourth proportional to 547,307.04, 755,276.64 and 305,593.80 is: 421,715.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,307.04 : 755,276.64 = 305,593.80 : x
  2. Step 2: Convert to fraction form
    547,307.04/755,276.64 = 305,593.80/x
  3. Step 3: Cross multiply
    547,307.04x = 755,276.64 × 305,593.80
  4. Step 4: Simplify right side
    547,307.04x = 230,807,858,468.83
  5. Step 5: Solve for x
    x = 230,807,858,468.83/547,307.04
  6. Step 6: Final answer
    x = 421,715.49

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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.