Home / 839,729.40-1,259,885.70-366,754.20

Finding the Fourth Proportional to 839,729.40, 1,259,885.70 and 366,754.20

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Solution

The fourth proportional to 839,729.40, 1,259,885.70 and 366,754.20 is: 550,258.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,729.40 : 1,259,885.70 = 366,754.20 : x
  2. Step 2: Convert to fraction form
    839,729.40/1,259,885.70 = 366,754.20/x
  3. Step 3: Cross multiply
    839,729.40x = 1,259,885.70 × 366,754.20
  4. Step 4: Simplify right side
    839,729.40x = 462,068,371,994.94
  5. Step 5: Solve for x
    x = 462,068,371,994.94/839,729.40
  6. Step 6: Final answer
    x = 550,258.66

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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.