Home / 457,376.49-631,171.44-253,423.35

Finding the Fourth Proportional to 457,376.49, 631,171.44 and 253,423.35

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Solution

The fourth proportional to 457,376.49, 631,171.44 and 253,423.35 is: 349,719.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,376.49 : 631,171.44 = 253,423.35 : x
  2. Step 2: Convert to fraction form
    457,376.49/631,171.44 = 253,423.35/x
  3. Step 3: Cross multiply
    457,376.49x = 631,171.44 × 253,423.35
  4. Step 4: Simplify right side
    457,376.49x = 159,953,580,749.12
  5. Step 5: Solve for x
    x = 159,953,580,749.12/457,376.49
  6. Step 6: Final answer
    x = 349,719.73

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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.