Home / 1,800,500.99-2,700,748.40-840,634.89

Finding the Fourth Proportional to 1,800,500.99, 2,700,748.40 and 840,634.89

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Solution

The fourth proportional to 1,800,500.99, 2,700,748.40 and 840,634.89 is: 1,260,950.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,800,500.99 : 2,700,748.40 = 840,634.89 : x
  2. Step 2: Convert to fraction form
    1,800,500.99/2,700,748.40 = 840,634.89/x
  3. Step 3: Cross multiply
    1,800,500.99x = 2,700,748.40 × 840,634.89
  4. Step 4: Simplify right side
    1,800,500.99x = 2,270,343,329,948.50
  5. Step 5: Solve for x
    x = 2,270,343,329,948.50/1,800,500.99
  6. Step 6: Final answer
    x = 1,260,950.90

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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.