Home / 801,345.40-1,201,629.30-445,982.20

Finding the Fourth Proportional to 801,345.40, 1,201,629.30 and 445,982.20

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Solution

The fourth proportional to 801,345.40, 1,201,629.30 and 445,982.20 is: 668,756.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    801,345.40 : 1,201,629.30 = 445,982.20 : x
  2. Step 2: Convert to fraction form
    801,345.40/1,201,629.30 = 445,982.20/x
  3. Step 3: Cross multiply
    801,345.40x = 1,201,629.30 × 445,982.20
  4. Step 4: Simplify right side
    801,345.40x = 535,905,278,798.46
  5. Step 5: Solve for x
    x = 535,905,278,798.46/801,345.40
  6. Step 6: Final answer
    x = 668,756.92

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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.