Home / 621,588.47-857,867.96-349,667.82

Finding the Fourth Proportional to 621,588.47, 857,867.96 and 349,667.82

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Solution

The fourth proportional to 621,588.47, 857,867.96 and 349,667.82 is: 482,584.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,588.47 : 857,867.96 = 349,667.82 : x
  2. Step 2: Convert to fraction form
    621,588.47/857,867.96 = 349,667.82/x
  3. Step 3: Cross multiply
    621,588.47x = 857,867.96 × 349,667.82
  4. Step 4: Simplify right side
    621,588.47x = 299,968,820,295.22
  5. Step 5: Solve for x
    x = 299,968,820,295.22/621,588.47
  6. Step 6: Final answer
    x = 482,584.28

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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.