Home / 529,796.05-731,108.20-288,076.51

Finding the Fourth Proportional to 529,796.05, 731,108.20 and 288,076.51

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Solution

The fourth proportional to 529,796.05, 731,108.20 and 288,076.51 is: 397,539.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,796.05 : 731,108.20 = 288,076.51 : x
  2. Step 2: Convert to fraction form
    529,796.05/731,108.20 = 288,076.51/x
  3. Step 3: Cross multiply
    529,796.05x = 731,108.20 × 288,076.51
  4. Step 4: Simplify right side
    529,796.05x = 210,615,098,688.38
  5. Step 5: Solve for x
    x = 210,615,098,688.38/529,796.05
  6. Step 6: Final answer
    x = 397,539.96

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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.