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Finding the Fourth Proportional to 539,419.40, 810,003.90 and 362,709.80

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Solution

The fourth proportional to 539,419.40, 810,003.90 and 362,709.80 is: 544,652.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,419.40 : 810,003.90 = 362,709.80 : x
  2. Step 2: Convert to fraction form
    539,419.40/810,003.90 = 362,709.80/x
  3. Step 3: Cross multiply
    539,419.40x = 810,003.90 × 362,709.80
  4. Step 4: Simplify right side
    539,419.40x = 293,796,352,568.22
  5. Step 5: Solve for x
    x = 293,796,352,568.22/539,419.40
  6. Step 6: Final answer
    x = 544,652.92

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Similar ratio
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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.