Home / 2,912,691.20-4,369,692.90-891,028.40

Finding the Fourth Proportional to 2,912,691.20, 4,369,692.90 and 891,028.40

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Solution

The fourth proportional to 2,912,691.20, 4,369,692.90 and 891,028.40 is: 1,336,743.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,912,691.20 : 4,369,692.90 = 891,028.40 : x
  2. Step 2: Convert to fraction form
    2,912,691.20/4,369,692.90 = 891,028.40/x
  3. Step 3: Cross multiply
    2,912,691.20x = 4,369,692.90 × 891,028.40
  4. Step 4: Simplify right side
    2,912,691.20x = 3,893,520,473,178.36
  5. Step 5: Solve for x
    x = 3,893,520,473,178.36/2,912,691.20
  6. Step 6: Final answer
    x = 1,336,743.31

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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.