Home / 801,071.40-1,201,218.30-445,708.20

Finding the Fourth Proportional to 801,071.40, 1,201,218.30 and 445,708.20

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Solution

The fourth proportional to 801,071.40, 1,201,218.30 and 445,708.20 is: 668,345.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    801,071.40 : 1,201,218.30 = 445,708.20 : x
  2. Step 2: Convert to fraction form
    801,071.40/1,201,218.30 = 445,708.20/x
  3. Step 3: Cross multiply
    801,071.40x = 1,201,218.30 × 445,708.20
  4. Step 4: Simplify right side
    801,071.40x = 535,392,846,300.06
  5. Step 5: Solve for x
    x = 535,392,846,300.06/801,071.40
  6. Step 6: Final answer
    x = 668,345.98

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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.