Home / 839,443.59-1,259,537.19-439,989.39

Finding the Fourth Proportional to 839,443.59, 1,259,537.19 and 439,989.39

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Solution

The fourth proportional to 839,443.59, 1,259,537.19 and 439,989.39 is: 660,178.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,443.59 : 1,259,537.19 = 439,989.39 : x
  2. Step 2: Convert to fraction form
    839,443.59/1,259,537.19 = 439,989.39/x
  3. Step 3: Cross multiply
    839,443.59x = 1,259,537.19 × 439,989.39
  4. Step 4: Simplify right side
    839,443.59x = 554,182,999,910.41
  5. Step 5: Solve for x
    x = 554,182,999,910.41/839,443.59
  6. Step 6: Final answer
    x = 660,178.96

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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.