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Finding the Fourth Proportional to 457,673.70, 631,827.36 and 355,470.33

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Solution

The fourth proportional to 457,673.70, 631,827.36 and 355,470.33 is: 490,733.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,673.70 : 631,827.36 = 355,470.33 : x
  2. Step 2: Convert to fraction form
    457,673.70/631,827.36 = 355,470.33/x
  3. Step 3: Cross multiply
    457,673.70x = 631,827.36 × 355,470.33
  4. Step 4: Simplify right side
    457,673.70x = 224,595,880,162.23
  5. Step 5: Solve for x
    x = 224,595,880,162.23/457,673.70
  6. Step 6: Final answer
    x = 490,733.64

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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.