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Finding the Fourth Proportional to 663,977.77, 996,281.76 and 344,069.84

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Solution

The fourth proportional to 663,977.77, 996,281.76 and 344,069.84 is: 516,268.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,977.77 : 996,281.76 = 344,069.84 : x
  2. Step 2: Convert to fraction form
    663,977.77/996,281.76 = 344,069.84/x
  3. Step 3: Cross multiply
    663,977.77x = 996,281.76 × 344,069.84
  4. Step 4: Simplify right side
    663,977.77x = 342,790,507,603.69
  5. Step 5: Solve for x
    x = 342,790,507,603.69/663,977.77
  6. Step 6: Final answer
    x = 516,268.05

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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.