Home / 529,839.12-731,181.42-288,124.32

Finding the Fourth Proportional to 529,839.12, 731,181.42 and 288,124.32

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Solution

The fourth proportional to 529,839.12, 731,181.42 and 288,124.32 is: 397,613.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,839.12 : 731,181.42 = 288,124.32 : x
  2. Step 2: Convert to fraction form
    529,839.12/731,181.42 = 288,124.32/x
  3. Step 3: Cross multiply
    529,839.12x = 731,181.42 × 288,124.32
  4. Step 4: Simplify right side
    529,839.12x = 210,671,149,434.13
  5. Step 5: Solve for x
    x = 210,671,149,434.13/529,839.12
  6. Step 6: Final answer
    x = 397,613.43

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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.