Home / 1,136,789.10-1,704,814.56-378,426.87

Finding the Fourth Proportional to 1,136,789.10, 1,704,814.56 and 378,426.87

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Solution

The fourth proportional to 1,136,789.10, 1,704,814.56 and 378,426.87 is: 567,517.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,136,789.10 : 1,704,814.56 = 378,426.87 : x
  2. Step 2: Convert to fraction form
    1,136,789.10/1,704,814.56 = 378,426.87/x
  3. Step 3: Cross multiply
    1,136,789.10x = 1,704,814.56 × 378,426.87
  4. Step 4: Simplify right side
    1,136,789.10x = 645,147,637,871.23
  5. Step 5: Solve for x
    x = 645,147,637,871.23/1,136,789.10
  6. Step 6: Final answer
    x = 567,517.44

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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.