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Finding the Fourth Proportional to 3,223,125.70, 4,834,688.55 and 978,972.10

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Solution

The fourth proportional to 3,223,125.70, 4,834,688.55 and 978,972.10 is: 1,468,458.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,223,125.70 : 4,834,688.55 = 978,972.10 : x
  2. Step 2: Convert to fraction form
    3,223,125.70/4,834,688.55 = 978,972.10/x
  3. Step 3: Cross multiply
    3,223,125.70x = 4,834,688.55 × 978,972.10
  4. Step 4: Simplify right side
    3,223,125.70x = 4,733,025,202,639.46
  5. Step 5: Solve for x
    x = 4,733,025,202,639.46/3,223,125.70
  6. Step 6: Final answer
    x = 1,468,458.15

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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.