Home / 521,860.47-720,170.21-292,418.25

Finding the Fourth Proportional to 521,860.47, 720,170.21 and 292,418.25

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Solution

The fourth proportional to 521,860.47, 720,170.21 and 292,418.25 is: 403,538.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,860.47 : 720,170.21 = 292,418.25 : x
  2. Step 2: Convert to fraction form
    521,860.47/720,170.21 = 292,418.25/x
  3. Step 3: Cross multiply
    521,860.47x = 720,170.21 × 292,418.25
  4. Step 4: Simplify right side
    521,860.47x = 210,590,912,510.33
  5. Step 5: Solve for x
    x = 210,590,912,510.33/521,860.47
  6. Step 6: Final answer
    x = 403,538.73

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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.