Home / 878,650.56-1,212,524.64-496,663.92

Finding the Fourth Proportional to 878,650.56, 1,212,524.64 and 496,663.92

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Solution

The fourth proportional to 878,650.56, 1,212,524.64 and 496,663.92 is: 685,388.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,650.56 : 1,212,524.64 = 496,663.92 : x
  2. Step 2: Convert to fraction form
    878,650.56/1,212,524.64 = 496,663.92/x
  3. Step 3: Cross multiply
    878,650.56x = 1,212,524.64 × 496,663.92
  4. Step 4: Simplify right side
    878,650.56x = 602,217,240,798.99
  5. Step 5: Solve for x
    x = 602,217,240,798.99/878,650.56
  6. Step 6: Final answer
    x = 685,388.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.