Home / 432,020.20-646,896.30-304,974.40

Finding the Fourth Proportional to 432,020.20, 646,896.30 and 304,974.40

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Solution

The fourth proportional to 432,020.20, 646,896.30 and 304,974.40 is: 456,661.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,020.20 : 646,896.30 = 304,974.40 : x
  2. Step 2: Convert to fraction form
    432,020.20/646,896.30 = 304,974.40/x
  3. Step 3: Cross multiply
    432,020.20x = 646,896.30 × 304,974.40
  4. Step 4: Simplify right side
    432,020.20x = 197,286,810,954.72
  5. Step 5: Solve for x
    x = 197,286,810,954.72/432,020.20
  6. Step 6: Final answer
    x = 456,661.08

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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.