Home / 457,789.64-631,743.17-253,840.95

Finding the Fourth Proportional to 457,789.64, 631,743.17 and 253,840.95

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Solution

The fourth proportional to 457,789.64, 631,743.17 and 253,840.95 is: 350,296.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,789.64 : 631,743.17 = 253,840.95 : x
  2. Step 2: Convert to fraction form
    457,789.64/631,743.17 = 253,840.95/x
  3. Step 3: Cross multiply
    457,789.64x = 631,743.17 × 253,840.95
  4. Step 4: Simplify right side
    457,789.64x = 160,362,285,159.61
  5. Step 5: Solve for x
    x = 160,362,285,159.61/457,789.64
  6. Step 6: Final answer
    x = 350,296.89

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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.