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Finding the Fourth Proportional to 522,647.69, 721,184.77 and 293,196.20

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Solution

The fourth proportional to 522,647.69, 721,184.77 and 293,196.20 is: 404,572.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,647.69 : 721,184.77 = 293,196.20 : x
  2. Step 2: Convert to fraction form
    522,647.69/721,184.77 = 293,196.20/x
  3. Step 3: Cross multiply
    522,647.69x = 721,184.77 × 293,196.20
  4. Step 4: Simplify right side
    522,647.69x = 211,448,631,201.55
  5. Step 5: Solve for x
    x = 211,448,631,201.55/522,647.69
  6. Step 6: Final answer
    x = 404,572.02

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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.