Home / 685,489.76-1,026,463.44-472,913.36

Finding the Fourth Proportional to 685,489.76, 1,026,463.44 and 472,913.36

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Solution

The fourth proportional to 685,489.76, 1,026,463.44 and 472,913.36 is: 708,148.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,489.76 : 1,026,463.44 = 472,913.36 : x
  2. Step 2: Convert to fraction form
    685,489.76/1,026,463.44 = 472,913.36/x
  3. Step 3: Cross multiply
    685,489.76x = 1,026,463.44 × 472,913.36
  4. Step 4: Simplify right side
    685,489.76x = 485,428,274,327.56
  5. Step 5: Solve for x
    x = 485,428,274,327.56/685,489.76
  6. Step 6: Final answer
    x = 708,148.10

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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.