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Finding the Fourth Proportional to 457,890.71, 631,928.00 and 254,007.32

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Solution

The fourth proportional to 457,890.71, 631,928.00 and 254,007.32 is: 350,551.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,890.71 : 631,928.00 = 254,007.32 : x
  2. Step 2: Convert to fraction form
    457,890.71/631,928.00 = 254,007.32/x
  3. Step 3: Cross multiply
    457,890.71x = 631,928.00 × 254,007.32
  4. Step 4: Simplify right side
    457,890.71x = 160,514,335,188.34
  5. Step 5: Solve for x
    x = 160,514,335,188.34/457,890.71
  6. Step 6: Final answer
    x = 350,551.63

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1.5x scale

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.