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Finding the Fourth Proportional to 539,335.40, 808,808.70 and 273,007.40

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Solution

The fourth proportional to 539,335.40, 808,808.70 and 273,007.40 is: 409,412.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,335.40 : 808,808.70 = 273,007.40 : x
  2. Step 2: Convert to fraction form
    539,335.40/808,808.70 = 273,007.40/x
  3. Step 3: Cross multiply
    539,335.40x = 808,808.70 × 273,007.40
  4. Step 4: Simplify right side
    539,335.40x = 220,810,760,284.38
  5. Step 5: Solve for x
    x = 220,810,760,284.38/539,335.40
  6. Step 6: Final answer
    x = 409,412.70

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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.