Home / 730,476.09-1,008,038.20-408,188.83

Finding the Fourth Proportional to 730,476.09, 1,008,038.20 and 408,188.83

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Solution

The fourth proportional to 730,476.09, 1,008,038.20 and 408,188.83 is: 563,290.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    730,476.09 : 1,008,038.20 = 408,188.83 : x
  2. Step 2: Convert to fraction form
    730,476.09/1,008,038.20 = 408,188.83/x
  3. Step 3: Cross multiply
    730,476.09x = 1,008,038.20 × 408,188.83
  4. Step 4: Simplify right side
    730,476.09x = 411,469,933,453.31
  5. Step 5: Solve for x
    x = 411,469,933,453.31/730,476.09
  6. Step 6: Final answer
    x = 563,290.08

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Double scale
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Similar ratio
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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.