Home / 680,328.48-1,019,746.44-280,763.04

Finding the Fourth Proportional to 680,328.48, 1,019,746.44 and 280,763.04

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Solution

The fourth proportional to 680,328.48, 1,019,746.44 and 280,763.04 is: 420,836.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,328.48 : 1,019,746.44 = 280,763.04 : x
  2. Step 2: Convert to fraction form
    680,328.48/1,019,746.44 = 280,763.04/x
  3. Step 3: Cross multiply
    680,328.48x = 1,019,746.44 × 280,763.04
  4. Step 4: Simplify right side
    680,328.48x = 286,307,110,523.58
  5. Step 5: Solve for x
    x = 286,307,110,523.58/680,328.48
  6. Step 6: Final answer
    x = 420,836.58

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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.