Home / 529,825.36-731,167.68-288,112.72

Finding the Fourth Proportional to 529,825.36, 731,167.68 and 288,112.72

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Solution

The fourth proportional to 529,825.36, 731,167.68 and 288,112.72 is: 397,600.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,825.36 : 731,167.68 = 288,112.72 : x
  2. Step 2: Convert to fraction form
    529,825.36/731,167.68 = 288,112.72/x
  3. Step 3: Cross multiply
    529,825.36x = 731,167.68 × 288,112.72
  4. Step 4: Simplify right side
    529,825.36x = 210,658,709,060.89
  5. Step 5: Solve for x
    x = 210,658,709,060.89/529,825.36
  6. Step 6: Final answer
    x = 397,600.28

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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.