Home / 761,919.73-1,142,704.69-454,258.76

Finding the Fourth Proportional to 761,919.73, 1,142,704.69 and 454,258.76

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Solution

The fourth proportional to 761,919.73, 1,142,704.69 and 454,258.76 is: 681,283.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,919.73 : 1,142,704.69 = 454,258.76 : x
  2. Step 2: Convert to fraction form
    761,919.73/1,142,704.69 = 454,258.76/x
  3. Step 3: Cross multiply
    761,919.73x = 1,142,704.69 × 454,258.76
  4. Step 4: Simplify right side
    761,919.73x = 519,083,615,525.58
  5. Step 5: Solve for x
    x = 519,083,615,525.58/761,919.73
  6. Step 6: Final answer
    x = 681,283.86

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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.