Home / 1,138,412.20-1,707,704.70-339,631.24

Finding the Fourth Proportional to 1,138,412.20, 1,707,704.70 and 339,631.24

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Solution

The fourth proportional to 1,138,412.20, 1,707,704.70 and 339,631.24 is: 509,472.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,412.20 : 1,707,704.70 = 339,631.24 : x
  2. Step 2: Convert to fraction form
    1,138,412.20/1,707,704.70 = 339,631.24/x
  3. Step 3: Cross multiply
    1,138,412.20x = 1,707,704.70 × 339,631.24
  4. Step 4: Simplify right side
    1,138,412.20x = 579,989,864,814.83
  5. Step 5: Solve for x
    x = 579,989,864,814.83/1,138,412.20
  6. Step 6: Final answer
    x = 509,472.64

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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.