Home / 457,928.64-631,881.36-253,977.12

Finding the Fourth Proportional to 457,928.64, 631,881.36 and 253,977.12

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Solution

The fourth proportional to 457,928.64, 631,881.36 and 253,977.12 is: 350,455.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,928.64 : 631,881.36 = 253,977.12 : x
  2. Step 2: Convert to fraction form
    457,928.64/631,881.36 = 253,977.12/x
  3. Step 3: Cross multiply
    457,928.64x = 631,881.36 × 253,977.12
  4. Step 4: Simplify right side
    457,928.64x = 160,483,407,994.48
  5. Step 5: Solve for x
    x = 160,483,407,994.48/457,928.64
  6. Step 6: Final answer
    x = 350,455.06

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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.