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Finding the Fourth Proportional to 547,123.60, 818,717.10 and 369,976.60

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Solution

The fourth proportional to 547,123.60, 818,717.10 and 369,976.60 is: 553,633.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,123.60 : 818,717.10 = 369,976.60 : x
  2. Step 2: Convert to fraction form
    547,123.60/818,717.10 = 369,976.60/x
  3. Step 3: Cross multiply
    547,123.60x = 818,717.10 × 369,976.60
  4. Step 4: Simplify right side
    547,123.60x = 302,906,169,019.86
  5. Step 5: Solve for x
    x = 302,906,169,019.86/547,123.60
  6. Step 6: Final answer
    x = 553,633.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.