Home / 856,711.92-1,285,230.12-344,416.68

Finding the Fourth Proportional to 856,711.92, 1,285,230.12 and 344,416.68

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Solution

The fourth proportional to 856,711.92, 1,285,230.12 and 344,416.68 is: 516,690.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,711.92 : 1,285,230.12 = 344,416.68 : x
  2. Step 2: Convert to fraction form
    856,711.92/1,285,230.12 = 344,416.68/x
  3. Step 3: Cross multiply
    856,711.92x = 1,285,230.12 × 344,416.68
  4. Step 4: Simplify right side
    856,711.92x = 442,654,690,966.40
  5. Step 5: Solve for x
    x = 442,654,690,966.40/856,711.92
  6. Step 6: Final answer
    x = 516,690.24

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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.