Home / 1,117,720.30-1,675,640.04-486,158.44

Finding the Fourth Proportional to 1,117,720.30, 1,675,640.04 and 486,158.44

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Solution

The fourth proportional to 1,117,720.30, 1,675,640.04 and 486,158.44 is: 728,828.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,117,720.30 : 1,675,640.04 = 486,158.44 : x
  2. Step 2: Convert to fraction form
    1,117,720.30/1,675,640.04 = 486,158.44/x
  3. Step 3: Cross multiply
    1,117,720.30x = 1,675,640.04 × 486,158.44
  4. Step 4: Simplify right side
    1,117,720.30x = 814,626,547,847.94
  5. Step 5: Solve for x
    x = 814,626,547,847.94/1,117,720.30
  6. Step 6: Final answer
    x = 728,828.62

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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.