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Finding the Fourth Proportional to 634,608.63, 875,754.81 and 344,219.45

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Solution

The fourth proportional to 634,608.63, 875,754.81 and 344,219.45 is: 475,020.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,608.63 : 875,754.81 = 344,219.45 : x
  2. Step 2: Convert to fraction form
    634,608.63/875,754.81 = 344,219.45/x
  3. Step 3: Cross multiply
    634,608.63x = 875,754.81 × 344,219.45
  4. Step 4: Simplify right side
    634,608.63x = 301,451,839,033.06
  5. Step 5: Solve for x
    x = 301,451,839,033.06/634,608.63
  6. Step 6: Final answer
    x = 475,020.08

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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.