Home / 857,463.32-1,285,073.76-351,431.84

Finding the Fourth Proportional to 857,463.32, 1,285,073.76 and 351,431.84

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Solution

The fourth proportional to 857,463.32, 1,285,073.76 and 351,431.84 is: 526,688.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,463.32 : 1,285,073.76 = 351,431.84 : x
  2. Step 2: Convert to fraction form
    857,463.32/1,285,073.76 = 351,431.84/x
  3. Step 3: Cross multiply
    857,463.32x = 1,285,073.76 × 351,431.84
  4. Step 4: Simplify right side
    857,463.32x = 451,615,836,012.52
  5. Step 5: Solve for x
    x = 451,615,836,012.52/857,463.32
  6. Step 6: Final answer
    x = 526,688.23

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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.