Home / 810,032.40-1,117,824.30-447,427.80

Finding the Fourth Proportional to 810,032.40, 1,117,824.30 and 447,427.80

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Solution

The fourth proportional to 810,032.40, 1,117,824.30 and 447,427.80 is: 617,439.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,032.40 : 1,117,824.30 = 447,427.80 : x
  2. Step 2: Convert to fraction form
    810,032.40/1,117,824.30 = 447,427.80/x
  3. Step 3: Cross multiply
    810,032.40x = 1,117,824.30 × 447,427.80
  4. Step 4: Simplify right side
    810,032.40x = 500,145,667,335.54
  5. Step 5: Solve for x
    x = 500,145,667,335.54/810,032.40
  6. Step 6: Final answer
    x = 617,439.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.