Home / 447,406.02-617,814.09-304,507.44

Finding the Fourth Proportional to 447,406.02, 617,814.09 and 304,507.44

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Solution

The fourth proportional to 447,406.02, 617,814.09 and 304,507.44 is: 420,488.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,406.02 : 617,814.09 = 304,507.44 : x
  2. Step 2: Convert to fraction form
    447,406.02/617,814.09 = 304,507.44/x
  3. Step 3: Cross multiply
    447,406.02x = 617,814.09 × 304,507.44
  4. Step 4: Simplify right side
    447,406.02x = 188,128,986,941.83
  5. Step 5: Solve for x
    x = 188,128,986,941.83/447,406.02
  6. Step 6: Final answer
    x = 420,488.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.