Home / 905,949.45-1,359,088.20-455,536.80

Finding the Fourth Proportional to 905,949.45, 1,359,088.20 and 455,536.80

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Solution

The fourth proportional to 905,949.45, 1,359,088.20 and 455,536.80 is: 683,387.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,949.45 : 1,359,088.20 = 455,536.80 : x
  2. Step 2: Convert to fraction form
    905,949.45/1,359,088.20 = 455,536.80/x
  3. Step 3: Cross multiply
    905,949.45x = 1,359,088.20 × 455,536.80
  4. Step 4: Simplify right side
    905,949.45x = 619,114,689,545.76
  5. Step 5: Solve for x
    x = 619,114,689,545.76/905,949.45
  6. Step 6: Final answer
    x = 683,387.68

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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.