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Finding the Fourth Proportional to 404,764.09, 607,143.20 and 134,912.79

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Solution

The fourth proportional to 404,764.09, 607,143.20 and 134,912.79 is: 202,368.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,764.09 : 607,143.20 = 134,912.79 : x
  2. Step 2: Convert to fraction form
    404,764.09/607,143.20 = 134,912.79/x
  3. Step 3: Cross multiply
    404,764.09x = 607,143.20 × 134,912.79
  4. Step 4: Simplify right side
    404,764.09x = 81,911,382,366.96
  5. Step 5: Solve for x
    x = 81,911,382,366.96/404,764.09
  6. Step 6: Final answer
    x = 202,368.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.