Home / 1,988,879.40-2,983,751.10-726,705

Finding the Fourth Proportional to 1,988,879.40, 2,983,751.10 and 726,705

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Solution

The fourth proportional to 1,988,879.40, 2,983,751.10 and 726,705 is: 1,090,215.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,988,879.40 : 2,983,751.10 = 726,705 : x
  2. Step 2: Convert to fraction form
    1,988,879.40/2,983,751.10 = 726,705/x
  3. Step 3: Cross multiply
    1,988,879.40x = 2,983,751.10 × 726,705
  4. Step 4: Simplify right side
    1,988,879.40x = 2,168,306,843,125.50
  5. Step 5: Solve for x
    x = 2,168,306,843,125.50/1,988,879.40
  6. Step 6: Final answer
    x = 1,090,215.35

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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.