Home / 689,624.20-1,033,820.70-268,802.20

Finding the Fourth Proportional to 689,624.20, 1,033,820.70 and 268,802.20

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Solution

The fourth proportional to 689,624.20, 1,033,820.70 and 268,802.20 is: 402,963.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,624.20 : 1,033,820.70 = 268,802.20 : x
  2. Step 2: Convert to fraction form
    689,624.20/1,033,820.70 = 268,802.20/x
  3. Step 3: Cross multiply
    689,624.20x = 1,033,820.70 × 268,802.20
  4. Step 4: Simplify right side
    689,624.20x = 277,893,278,565.54
  5. Step 5: Solve for x
    x = 277,893,278,565.54/689,624.20
  6. Step 6: Final answer
    x = 402,963.35

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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.