Home / 1,398,988.65-2,098,849.70-439,405.49

Finding the Fourth Proportional to 1,398,988.65, 2,098,849.70 and 439,405.49

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Solution

The fourth proportional to 1,398,988.65, 2,098,849.70 and 439,405.49 is: 659,223.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,398,988.65 : 2,098,849.70 = 439,405.49 : x
  2. Step 2: Convert to fraction form
    1,398,988.65/2,098,849.70 = 439,405.49/x
  3. Step 3: Cross multiply
    1,398,988.65x = 2,098,849.70 × 439,405.49
  4. Step 4: Simplify right side
    1,398,988.65x = 922,246,083,914.95
  5. Step 5: Solve for x
    x = 922,246,083,914.95/1,398,988.65
  6. Step 6: Final answer
    x = 659,223.42

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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.