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Finding the Fourth Proportional to 463,653.26, 640,060.66 and 310,791.32

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Solution

The fourth proportional to 463,653.26, 640,060.66 and 310,791.32 is: 429,038.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,653.26 : 640,060.66 = 310,791.32 : x
  2. Step 2: Convert to fraction form
    463,653.26/640,060.66 = 310,791.32/x
  3. Step 3: Cross multiply
    463,653.26x = 640,060.66 × 310,791.32
  4. Step 4: Simplify right side
    463,653.26x = 198,925,298,224.65
  5. Step 5: Solve for x
    x = 198,925,298,224.65/463,653.26
  6. Step 6: Final answer
    x = 429,038.93

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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.