Home / 529,812.21-731,144.65-288,093.05

Finding the Fourth Proportional to 529,812.21, 731,144.65 and 288,093.05

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Solution

The fourth proportional to 529,812.21, 731,144.65 and 288,093.05 is: 397,570.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,812.21 : 731,144.65 = 288,093.05 : x
  2. Step 2: Convert to fraction form
    529,812.21/731,144.65 = 288,093.05/x
  3. Step 3: Cross multiply
    529,812.21x = 731,144.65 × 288,093.05
  4. Step 4: Simplify right side
    529,812.21x = 210,637,688,553.96
  5. Step 5: Solve for x
    x = 210,637,688,553.96/529,812.21
  6. Step 6: Final answer
    x = 397,570.47

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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.