Home / 529,837.12-731,446.02-408,706.48

Finding the Fourth Proportional to 529,837.12, 731,446.02 and 408,706.48

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Solution

The fourth proportional to 529,837.12, 731,446.02 and 408,706.48 is: 564,223.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,837.12 : 731,446.02 = 408,706.48 : x
  2. Step 2: Convert to fraction form
    529,837.12/731,446.02 = 408,706.48/x
  3. Step 3: Cross multiply
    529,837.12x = 731,446.02 × 408,706.48
  4. Step 4: Simplify right side
    529,837.12x = 298,946,728,144.21
  5. Step 5: Solve for x
    x = 298,946,728,144.21/529,837.12
  6. Step 6: Final answer
    x = 564,223.83

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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.