Home / 529,792.12-731,116.56-288,077.32

Finding the Fourth Proportional to 529,792.12, 731,116.56 and 288,077.32

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Solution

The fourth proportional to 529,792.12, 731,116.56 and 288,077.32 is: 397,548.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,792.12 : 731,116.56 = 288,077.32 : x
  2. Step 2: Convert to fraction form
    529,792.12/731,116.56 = 288,077.32/x
  3. Step 3: Cross multiply
    529,792.12x = 731,116.56 × 288,077.32
  4. Step 4: Simplify right side
    529,792.12x = 210,618,099,212.42
  5. Step 5: Solve for x
    x = 210,618,099,212.42/529,792.12
  6. Step 6: Final answer
    x = 397,548.57

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1.5x scale

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.