Home / 1,942,421.40-2,912,595.30-819,221.40

Finding the Fourth Proportional to 1,942,421.40, 2,912,595.30 and 819,221.40

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Solution

The fourth proportional to 1,942,421.40, 2,912,595.30 and 819,221.40 is: 1,228,394.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,942,421.40 : 2,912,595.30 = 819,221.40 : x
  2. Step 2: Convert to fraction form
    1,942,421.40/2,912,595.30 = 819,221.40/x
  3. Step 3: Cross multiply
    1,942,421.40x = 2,912,595.30 × 819,221.40
  4. Step 4: Simplify right side
    1,942,421.40x = 2,386,060,399,299.42
  5. Step 5: Solve for x
    x = 2,386,060,399,299.42/1,942,421.40
  6. Step 6: Final answer
    x = 1,228,394.83

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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.