Home / 857,145.68-1,285,898.33-324,654.92

Finding the Fourth Proportional to 857,145.68, 1,285,898.33 and 324,654.92

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Solution

The fourth proportional to 857,145.68, 1,285,898.33 and 324,654.92 is: 487,050.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,145.68 : 1,285,898.33 = 324,654.92 : x
  2. Step 2: Convert to fraction form
    857,145.68/1,285,898.33 = 324,654.92/x
  3. Step 3: Cross multiply
    857,145.68x = 1,285,898.33 × 324,654.92
  4. Step 4: Simplify right side
    857,145.68x = 417,473,219,454.28
  5. Step 5: Solve for x
    x = 417,473,219,454.28/857,145.68
  6. Step 6: Final answer
    x = 487,050.49

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1.5x scale

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.