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Finding the Fourth Proportional to 457,507.36, 631,385.28 and 253,554

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Solution

The fourth proportional to 457,507.36, 631,385.28 and 253,554 is: 349,918.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,507.36 : 631,385.28 = 253,554 : x
  2. Step 2: Convert to fraction form
    457,507.36/631,385.28 = 253,554/x
  3. Step 3: Cross multiply
    457,507.36x = 631,385.28 × 253,554
  4. Step 4: Simplify right side
    457,507.36x = 160,090,263,285.12
  5. Step 5: Solve for x
    x = 160,090,263,285.12/457,507.36
  6. Step 6: Final answer
    x = 349,918.44

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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.