Home / 457,485.84-631,313.28-253,531.44

Finding the Fourth Proportional to 457,485.84, 631,313.28 and 253,531.44

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Solution

The fourth proportional to 457,485.84, 631,313.28 and 253,531.44 is: 349,863.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,485.84 : 631,313.28 = 253,531.44 : x
  2. Step 2: Convert to fraction form
    457,485.84/631,313.28 = 253,531.44/x
  3. Step 3: Cross multiply
    457,485.84x = 631,313.28 × 253,531.44
  4. Step 4: Simplify right side
    457,485.84x = 160,057,764,969.52
  5. Step 5: Solve for x
    x = 160,057,764,969.52/457,485.84
  6. Step 6: Final answer
    x = 349,863.87

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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.