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Finding the Fourth Proportional to 649,308.70, 973,963.05 and 531,210.70

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Solution

The fourth proportional to 649,308.70, 973,963.05 and 531,210.70 is: 796,816.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,308.70 : 973,963.05 = 531,210.70 : x
  2. Step 2: Convert to fraction form
    649,308.70/973,963.05 = 531,210.70/x
  3. Step 3: Cross multiply
    649,308.70x = 973,963.05 × 531,210.70
  4. Step 4: Simplify right side
    649,308.70x = 517,379,593,564.64
  5. Step 5: Solve for x
    x = 517,379,593,564.64/649,308.70
  6. Step 6: Final answer
    x = 796,816.05

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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.