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Finding the Fourth Proportional to 484,742.40, 726,400.80 and 351,902.40

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Solution

The fourth proportional to 484,742.40, 726,400.80 and 351,902.40 is: 527,336.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,742.40 : 726,400.80 = 351,902.40 : x
  2. Step 2: Convert to fraction form
    484,742.40/726,400.80 = 351,902.40/x
  3. Step 3: Cross multiply
    484,742.40x = 726,400.80 × 351,902.40
  4. Step 4: Simplify right side
    484,742.40x = 255,622,184,881.92
  5. Step 5: Solve for x
    x = 255,622,184,881.92/484,742.40
  6. Step 6: Final answer
    x = 527,336.14

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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.