Home / 1,118,938.88-1,679,871.76-664,359.96

Finding the Fourth Proportional to 1,118,938.88, 1,679,871.76 and 664,359.96

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Solution

The fourth proportional to 1,118,938.88, 1,679,871.76 and 664,359.96 is: 997,408.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,118,938.88 : 1,679,871.76 = 664,359.96 : x
  2. Step 2: Convert to fraction form
    1,118,938.88/1,679,871.76 = 664,359.96/x
  3. Step 3: Cross multiply
    1,118,938.88x = 1,679,871.76 × 664,359.96
  4. Step 4: Simplify right side
    1,118,938.88x = 1,116,039,535,278.73
  5. Step 5: Solve for x
    x = 1,116,039,535,278.73/1,118,938.88
  6. Step 6: Final answer
    x = 997,408.84

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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.