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Finding the Fourth Proportional to 529,243.90, 730,303.88 and 299,755.38

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Solution

The fourth proportional to 529,243.90, 730,303.88 and 299,755.38 is: 413,632.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,243.90 : 730,303.88 = 299,755.38 : x
  2. Step 2: Convert to fraction form
    529,243.90/730,303.88 = 299,755.38/x
  3. Step 3: Cross multiply
    529,243.90x = 730,303.88 × 299,755.38
  4. Step 4: Simplify right side
    529,243.90x = 218,912,521,255.45
  5. Step 5: Solve for x
    x = 218,912,521,255.45/529,243.90
  6. Step 6: Final answer
    x = 413,632.58

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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.