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Finding the Fourth Proportional to 544,618.20, 816,927.30 and 520,123.80

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Solution

The fourth proportional to 544,618.20, 816,927.30 and 520,123.80 is: 780,185.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,618.20 : 816,927.30 = 520,123.80 : x
  2. Step 2: Convert to fraction form
    544,618.20/816,927.30 = 520,123.80/x
  3. Step 3: Cross multiply
    544,618.20x = 816,927.30 × 520,123.80
  4. Step 4: Simplify right side
    544,618.20x = 424,903,331,599.74
  5. Step 5: Solve for x
    x = 424,903,331,599.74/544,618.20
  6. Step 6: Final answer
    x = 780,185.70

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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.