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Finding the Fourth Proportional to 457,434.44, 631,263.24 and 253,488.79

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Solution

The fourth proportional to 457,434.44, 631,263.24 and 253,488.79 is: 349,816.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,434.44 : 631,263.24 = 253,488.79 : x
  2. Step 2: Convert to fraction form
    457,434.44/631,263.24 = 253,488.79/x
  3. Step 3: Cross multiply
    457,434.44x = 631,263.24 × 253,488.79
  4. Step 4: Simplify right side
    457,434.44x = 160,018,153,300.92
  5. Step 5: Solve for x
    x = 160,018,153,300.92/457,434.44
  6. Step 6: Final answer
    x = 349,816.59

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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.