Home / 689,656.20-1,033,868.70-268,834.20

Finding the Fourth Proportional to 689,656.20, 1,033,868.70 and 268,834.20

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Solution

The fourth proportional to 689,656.20, 1,033,868.70 and 268,834.20 is: 403,011.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,656.20 : 1,033,868.70 = 268,834.20 : x
  2. Step 2: Convert to fraction form
    689,656.20/1,033,868.70 = 268,834.20/x
  3. Step 3: Cross multiply
    689,656.20x = 1,033,868.70 × 268,834.20
  4. Step 4: Simplify right side
    689,656.20x = 277,939,264,869.54
  5. Step 5: Solve for x
    x = 277,939,264,869.54/689,656.20
  6. Step 6: Final answer
    x = 403,011.33

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1.5x scale

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.