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Finding the Fourth Proportional to 665,097.40, 996,551.70 and 384,124.60

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Solution

The fourth proportional to 665,097.40, 996,551.70 and 384,124.60 is: 575,554.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,097.40 : 996,551.70 = 384,124.60 : x
  2. Step 2: Convert to fraction form
    665,097.40/996,551.70 = 384,124.60/x
  3. Step 3: Cross multiply
    665,097.40x = 996,551.70 × 384,124.60
  4. Step 4: Simplify right side
    665,097.40x = 382,800,023,141.82
  5. Step 5: Solve for x
    x = 382,800,023,141.82/665,097.40
  6. Step 6: Final answer
    x = 575,554.83

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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.