Home / 1,098,905.40-1,648,108.62-388,933.11

Finding the Fourth Proportional to 1,098,905.40, 1,648,108.62 and 388,933.11

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Solution

The fourth proportional to 1,098,905.40, 1,648,108.62 and 388,933.11 is: 583,311.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,098,905.40 : 1,648,108.62 = 388,933.11 : x
  2. Step 2: Convert to fraction form
    1,098,905.40/1,648,108.62 = 388,933.11/x
  3. Step 3: Cross multiply
    1,098,905.40x = 1,648,108.62 × 388,933.11
  4. Step 4: Simplify right side
    1,098,905.40x = 641,004,011,194.41
  5. Step 5: Solve for x
    x = 641,004,011,194.41/1,098,905.40
  6. Step 6: Final answer
    x = 583,311.37

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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.