Home / 727,972.40-1,091,569.80-254,673.20

Finding the Fourth Proportional to 727,972.40, 1,091,569.80 and 254,673.20

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Solution

The fourth proportional to 727,972.40, 1,091,569.80 and 254,673.20 is: 381,873.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,972.40 : 1,091,569.80 = 254,673.20 : x
  2. Step 2: Convert to fraction form
    727,972.40/1,091,569.80 = 254,673.20/x
  3. Step 3: Cross multiply
    727,972.40x = 1,091,569.80 × 254,673.20
  4. Step 4: Simplify right side
    727,972.40x = 277,993,573,989.36
  5. Step 5: Solve for x
    x = 277,993,573,989.36/727,972.40
  6. Step 6: Final answer
    x = 381,873.78

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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.