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Finding the Fourth Proportional to 477,467.40, 658,684.13 and 286,148.64

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Solution

The fourth proportional to 477,467.40, 658,684.13 and 286,148.64 is: 394,752.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,467.40 : 658,684.13 = 286,148.64 : x
  2. Step 2: Convert to fraction form
    477,467.40/658,684.13 = 286,148.64/x
  3. Step 3: Cross multiply
    477,467.40x = 658,684.13 × 286,148.64
  4. Step 4: Simplify right side
    477,467.40x = 188,481,566,558.34
  5. Step 5: Solve for x
    x = 188,481,566,558.34/477,467.40
  6. Step 6: Final answer
    x = 394,752.74

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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.