Home / 1,422,813.80-2,133,491.10-425,412.20

Finding the Fourth Proportional to 1,422,813.80, 2,133,491.10 and 425,412.20

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Solution

The fourth proportional to 1,422,813.80, 2,133,491.10 and 425,412.20 is: 637,900.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,422,813.80 : 2,133,491.10 = 425,412.20 : x
  2. Step 2: Convert to fraction form
    1,422,813.80/2,133,491.10 = 425,412.20/x
  3. Step 3: Cross multiply
    1,422,813.80x = 2,133,491.10 × 425,412.20
  4. Step 4: Simplify right side
    1,422,813.80x = 907,613,142,531.42
  5. Step 5: Solve for x
    x = 907,613,142,531.42/1,422,813.80
  6. Step 6: Final answer
    x = 637,900.15

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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.