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Finding the Fourth Proportional to 922,763.70, 1,384,145.55 and 670,821.30

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Solution

The fourth proportional to 922,763.70, 1,384,145.55 and 670,821.30 is: 1,006,231.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,763.70 : 1,384,145.55 = 670,821.30 : x
  2. Step 2: Convert to fraction form
    922,763.70/1,384,145.55 = 670,821.30/x
  3. Step 3: Cross multiply
    922,763.70x = 1,384,145.55 × 670,821.30
  4. Step 4: Simplify right side
    922,763.70x = 928,514,317,240.22
  5. Step 5: Solve for x
    x = 928,514,317,240.22/922,763.70
  6. Step 6: Final answer
    x = 1,006,231.95

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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.