Home / 457,743.47-631,686.15-253,796.81

Finding the Fourth Proportional to 457,743.47, 631,686.15 and 253,796.81

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Solution

The fourth proportional to 457,743.47, 631,686.15 and 253,796.81 is: 350,239.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,743.47 : 631,686.15 = 253,796.81 : x
  2. Step 2: Convert to fraction form
    457,743.47/631,686.15 = 253,796.81/x
  3. Step 3: Cross multiply
    457,743.47x = 631,686.15 × 253,796.81
  4. Step 4: Simplify right side
    457,743.47x = 160,319,926,632.75
  5. Step 5: Solve for x
    x = 160,319,926,632.75/457,743.47
  6. Step 6: Final answer
    x = 350,239.68

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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.