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Finding the Fourth Proportional to 873,795.10, 1,311,007.03 and 305,259.85

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Solution

The fourth proportional to 873,795.10, 1,311,007.03 and 305,259.85 is: 457,999.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,795.10 : 1,311,007.03 = 305,259.85 : x
  2. Step 2: Convert to fraction form
    873,795.10/1,311,007.03 = 305,259.85/x
  3. Step 3: Cross multiply
    873,795.10x = 1,311,007.03 × 305,259.85
  4. Step 4: Simplify right side
    873,795.10x = 400,197,802,771.71
  5. Step 5: Solve for x
    x = 400,197,802,771.71/873,795.10
  6. Step 6: Final answer
    x = 457,999.60

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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.