Home / 403,669.80-604,986.30-309,709.80

Finding the Fourth Proportional to 403,669.80, 604,986.30 and 309,709.80

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Solution

The fourth proportional to 403,669.80, 604,986.30 and 309,709.80 is: 464,166.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,669.80 : 604,986.30 = 309,709.80 : x
  2. Step 2: Convert to fraction form
    403,669.80/604,986.30 = 309,709.80/x
  3. Step 3: Cross multiply
    403,669.80x = 604,986.30 × 309,709.80
  4. Step 4: Simplify right side
    403,669.80x = 187,370,185,975.74
  5. Step 5: Solve for x
    x = 187,370,185,975.74/403,669.80
  6. Step 6: Final answer
    x = 464,166.97

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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.