Home / 1,212,029.40-1,816,488.90-930,149.40

Finding the Fourth Proportional to 1,212,029.40, 1,816,488.90 and 930,149.40

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Solution

The fourth proportional to 1,212,029.40, 1,816,488.90 and 930,149.40 is: 1,394,030.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,029.40 : 1,816,488.90 = 930,149.40 : x
  2. Step 2: Convert to fraction form
    1,212,029.40/1,816,488.90 = 930,149.40/x
  3. Step 3: Cross multiply
    1,212,029.40x = 1,816,488.90 × 930,149.40
  4. Step 4: Simplify right side
    1,212,029.40x = 1,689,606,060,441.66
  5. Step 5: Solve for x
    x = 1,689,606,060,441.66/1,212,029.40
  6. Step 6: Final answer
    x = 1,394,030.59

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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.