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Finding the Fourth Proportional to 550,789.74, 759,482.73 and 380,728.62

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Solution

The fourth proportional to 550,789.74, 759,482.73 and 380,728.62 is: 524,985.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,789.74 : 759,482.73 = 380,728.62 : x
  2. Step 2: Convert to fraction form
    550,789.74/759,482.73 = 380,728.62/x
  3. Step 3: Cross multiply
    550,789.74x = 759,482.73 × 380,728.62
  4. Step 4: Simplify right side
    550,789.74x = 289,156,811,706.73
  5. Step 5: Solve for x
    x = 289,156,811,706.73/550,789.74
  6. Step 6: Final answer
    x = 524,985.84

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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.