Home / 856,925.86-1,285,393.36-257,882.92

Finding the Fourth Proportional to 856,925.86, 1,285,393.36 and 257,882.92

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Solution

The fourth proportional to 856,925.86, 1,285,393.36 and 257,882.92 is: 386,825.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,925.86 : 1,285,393.36 = 257,882.92 : x
  2. Step 2: Convert to fraction form
    856,925.86/1,285,393.36 = 257,882.92/x
  3. Step 3: Cross multiply
    856,925.86x = 1,285,393.36 × 257,882.92
  4. Step 4: Simplify right side
    856,925.86x = 331,480,993,025.41
  5. Step 5: Solve for x
    x = 331,480,993,025.41/856,925.86
  6. Step 6: Final answer
    x = 386,825.76

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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.