Home / 1,138,205.20-1,707,394.20-339,424.24

Finding the Fourth Proportional to 1,138,205.20, 1,707,394.20 and 339,424.24

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Solution

The fourth proportional to 1,138,205.20, 1,707,394.20 and 339,424.24 is: 509,162.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,205.20 : 1,707,394.20 = 339,424.24 : x
  2. Step 2: Convert to fraction form
    1,138,205.20/1,707,394.20 = 339,424.24/x
  3. Step 3: Cross multiply
    1,138,205.20x = 1,707,394.20 × 339,424.24
  4. Step 4: Simplify right side
    1,138,205.20x = 579,530,978,715.41
  5. Step 5: Solve for x
    x = 579,530,978,715.41/1,138,205.20
  6. Step 6: Final answer
    x = 509,162.13

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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.