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Finding the Fourth Proportional to 655,527.06, 904,416.12 and 397,507.50

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Solution

The fourth proportional to 655,527.06, 904,416.12 and 397,507.50 is: 548,432.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,527.06 : 904,416.12 = 397,507.50 : x
  2. Step 2: Convert to fraction form
    655,527.06/904,416.12 = 397,507.50/x
  3. Step 3: Cross multiply
    655,527.06x = 904,416.12 × 397,507.50
  4. Step 4: Simplify right side
    655,527.06x = 359,512,190,820.90
  5. Step 5: Solve for x
    x = 359,512,190,820.90/655,527.06
  6. Step 6: Final answer
    x = 548,432.27

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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.