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Finding the Fourth Proportional to 542,860.80, 814,291.20 and 454,943.40

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Solution

The fourth proportional to 542,860.80, 814,291.20 and 454,943.40 is: 682,415.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,860.80 : 814,291.20 = 454,943.40 : x
  2. Step 2: Convert to fraction form
    542,860.80/814,291.20 = 454,943.40/x
  3. Step 3: Cross multiply
    542,860.80x = 814,291.20 × 454,943.40
  4. Step 4: Simplify right side
    542,860.80x = 370,456,407,118.08
  5. Step 5: Solve for x
    x = 370,456,407,118.08/542,860.80
  6. Step 6: Final answer
    x = 682,415.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.