Home / 671,985.18-1,007,470.98-405,682.43

Finding the Fourth Proportional to 671,985.18, 1,007,470.98 and 405,682.43

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Solution

The fourth proportional to 671,985.18, 1,007,470.98 and 405,682.43 is: 608,217.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,985.18 : 1,007,470.98 = 405,682.43 : x
  2. Step 2: Convert to fraction form
    671,985.18/1,007,470.98 = 405,682.43/x
  3. Step 3: Cross multiply
    671,985.18x = 1,007,470.98 × 405,682.43
  4. Step 4: Simplify right side
    671,985.18x = 408,713,270,283.53
  5. Step 5: Solve for x
    x = 408,713,270,283.53/671,985.18
  6. Step 6: Final answer
    x = 608,217.68

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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.