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Finding the Fourth Proportional to 463,580.66, 640,048.56 and 355,957.58

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Solution

The fourth proportional to 463,580.66, 640,048.56 and 355,957.58 is: 491,457.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,580.66 : 640,048.56 = 355,957.58 : x
  2. Step 2: Convert to fraction form
    463,580.66/640,048.56 = 355,957.58/x
  3. Step 3: Cross multiply
    463,580.66x = 640,048.56 × 355,957.58
  4. Step 4: Simplify right side
    463,580.66x = 227,830,136,500.09
  5. Step 5: Solve for x
    x = 227,830,136,500.09/463,580.66
  6. Step 6: Final answer
    x = 491,457.38

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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.