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Finding the Fourth Proportional to 558,523.19, 770,700.31 and 313,451.74

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Solution

The fourth proportional to 558,523.19, 770,700.31 and 313,451.74 is: 432,528.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,523.19 : 770,700.31 = 313,451.74 : x
  2. Step 2: Convert to fraction form
    558,523.19/770,700.31 = 313,451.74/x
  3. Step 3: Cross multiply
    558,523.19x = 770,700.31 × 313,451.74
  4. Step 4: Simplify right side
    558,523.19x = 241,577,353,188.04
  5. Step 5: Solve for x
    x = 241,577,353,188.04/558,523.19
  6. Step 6: Final answer
    x = 432,528.78

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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.