Home / 730,478.09-1,008,040.97-408,190.83

Finding the Fourth Proportional to 730,478.09, 1,008,040.97 and 408,190.83

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Solution

The fourth proportional to 730,478.09, 1,008,040.97 and 408,190.83 is: 563,292.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    730,478.09 : 1,008,040.97 = 408,190.83 : x
  2. Step 2: Convert to fraction form
    730,478.09/1,008,040.97 = 408,190.83/x
  3. Step 3: Cross multiply
    730,478.09x = 1,008,040.97 × 408,190.83
  4. Step 4: Simplify right side
    730,478.09x = 411,473,078,177.35
  5. Step 5: Solve for x
    x = 411,473,078,177.35/730,478.09
  6. Step 6: Final answer
    x = 563,292.84

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Double scale
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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.