Home / 1,289,488.40-1,930,546.20-791,824.40

Finding the Fourth Proportional to 1,289,488.40, 1,930,546.20 and 791,824.40

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Solution

The fourth proportional to 1,289,488.40, 1,930,546.20 and 791,824.40 is: 1,185,472.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,488.40 : 1,930,546.20 = 791,824.40 : x
  2. Step 2: Convert to fraction form
    1,289,488.40/1,930,546.20 = 791,824.40/x
  3. Step 3: Cross multiply
    1,289,488.40x = 1,930,546.20 × 791,824.40
  4. Step 4: Simplify right side
    1,289,488.40x = 1,528,653,586,487.28
  5. Step 5: Solve for x
    x = 1,528,653,586,487.28/1,289,488.40
  6. Step 6: Final answer
    x = 1,185,472.93

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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.