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Finding the Fourth Proportional to 457,808.76, 631,783.65 and 253,868.28

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Solution

The fourth proportional to 457,808.76, 631,783.65 and 253,868.28 is: 350,342.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,808.76 : 631,783.65 = 253,868.28 : x
  2. Step 2: Convert to fraction form
    457,808.76/631,783.65 = 253,868.28/x
  3. Step 3: Cross multiply
    457,808.76x = 631,783.65 × 253,868.28
  4. Step 4: Simplify right side
    457,808.76x = 160,389,828,557.62
  5. Step 5: Solve for x
    x = 160,389,828,557.62/457,808.76
  6. Step 6: Final answer
    x = 350,342.42

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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.