Home / 830,920.80-1,246,381.20-269,955.30

Finding the Fourth Proportional to 830,920.80, 1,246,381.20 and 269,955.30

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Solution

The fourth proportional to 830,920.80, 1,246,381.20 and 269,955.30 is: 404,932.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,920.80 : 1,246,381.20 = 269,955.30 : x
  2. Step 2: Convert to fraction form
    830,920.80/1,246,381.20 = 269,955.30/x
  3. Step 3: Cross multiply
    830,920.80x = 1,246,381.20 × 269,955.30
  4. Step 4: Simplify right side
    830,920.80x = 336,467,210,760.36
  5. Step 5: Solve for x
    x = 336,467,210,760.36/830,920.80
  6. Step 6: Final answer
    x = 404,932.95

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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.