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Finding the Fourth Proportional to 484,375.40, 726,692.70 and 344,407.40

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Solution

The fourth proportional to 484,375.40, 726,692.70 and 344,407.40 is: 516,703.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,375.40 : 726,692.70 = 344,407.40 : x
  2. Step 2: Convert to fraction form
    484,375.40/726,692.70 = 344,407.40/x
  3. Step 3: Cross multiply
    484,375.40x = 726,692.70 × 344,407.40
  4. Step 4: Simplify right side
    484,375.40x = 250,278,343,405.98
  5. Step 5: Solve for x
    x = 250,278,343,405.98/484,375.40
  6. Step 6: Final answer
    x = 516,703.25

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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.