Home / 529,942.69-731,325.81-288,230.05

Finding the Fourth Proportional to 529,942.69, 731,325.81 and 288,230.05

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Solution

The fourth proportional to 529,942.69, 731,325.81 and 288,230.05 is: 397,760.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,942.69 : 731,325.81 = 288,230.05 : x
  2. Step 2: Convert to fraction form
    529,942.69/731,325.81 = 288,230.05/x
  3. Step 3: Cross multiply
    529,942.69x = 731,325.81 × 288,230.05
  4. Step 4: Simplify right side
    529,942.69x = 210,790,074,782.59
  5. Step 5: Solve for x
    x = 210,790,074,782.59/529,942.69
  6. Step 6: Final answer
    x = 397,760.13

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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.