Home / 663,821.74-996,664.18-339,841.23

Finding the Fourth Proportional to 663,821.74, 996,664.18 and 339,841.23

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Solution

The fourth proportional to 663,821.74, 996,664.18 and 339,841.23 is: 510,238.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,821.74 : 996,664.18 = 339,841.23 : x
  2. Step 2: Convert to fraction form
    663,821.74/996,664.18 = 339,841.23/x
  3. Step 3: Cross multiply
    663,821.74x = 996,664.18 × 339,841.23
  4. Step 4: Simplify right side
    663,821.74x = 338,707,582,484.49
  5. Step 5: Solve for x
    x = 338,707,582,484.49/663,821.74
  6. Step 6: Final answer
    x = 510,238.76

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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.