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Finding the Fourth Proportional to 524,497.20, 786,745.80 and 513,999.60

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Solution

The fourth proportional to 524,497.20, 786,745.80 and 513,999.60 is: 770,999.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,497.20 : 786,745.80 = 513,999.60 : x
  2. Step 2: Convert to fraction form
    524,497.20/786,745.80 = 513,999.60/x
  3. Step 3: Cross multiply
    524,497.20x = 786,745.80 × 513,999.60
  4. Step 4: Simplify right side
    524,497.20x = 404,387,026,501.68
  5. Step 5: Solve for x
    x = 404,387,026,501.68/524,497.20
  6. Step 6: Final answer
    x = 770,999.40

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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.