Home / 529,822.36-731,163.54-288,109.72

Finding the Fourth Proportional to 529,822.36, 731,163.54 and 288,109.72

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Solution

The fourth proportional to 529,822.36, 731,163.54 and 288,109.72 is: 397,596.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,822.36 : 731,163.54 = 288,109.72 : x
  2. Step 2: Convert to fraction form
    529,822.36/731,163.54 = 288,109.72/x
  3. Step 3: Cross multiply
    529,822.36x = 731,163.54 × 288,109.72
  4. Step 4: Simplify right side
    529,822.36x = 210,655,322,783.61
  5. Step 5: Solve for x
    x = 210,655,322,783.61/529,822.36
  6. Step 6: Final answer
    x = 397,596.14

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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.