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Finding the Fourth Proportional to 484,485.40, 726,857.70 and 344,517.40

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Solution

The fourth proportional to 484,485.40, 726,857.70 and 344,517.40 is: 516,868.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,485.40 : 726,857.70 = 344,517.40 : x
  2. Step 2: Convert to fraction form
    484,485.40/726,857.70 = 344,517.40/x
  3. Step 3: Cross multiply
    484,485.40x = 726,857.70 × 344,517.40
  4. Step 4: Simplify right side
    484,485.40x = 250,415,124,973.98
  5. Step 5: Solve for x
    x = 250,415,124,973.98/484,485.40
  6. Step 6: Final answer
    x = 516,868.26

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1.5x scale

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.