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Finding the Fourth Proportional to 542,483.45, 813,860.46 and 382,871.15

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Solution

The fourth proportional to 542,483.45, 813,860.46 and 382,871.15 is: 574,402.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,483.45 : 813,860.46 = 382,871.15 : x
  2. Step 2: Convert to fraction form
    542,483.45/813,860.46 = 382,871.15/x
  3. Step 3: Cross multiply
    542,483.45x = 813,860.46 × 382,871.15
  4. Step 4: Simplify right side
    542,483.45x = 311,603,686,190.43
  5. Step 5: Solve for x
    x = 311,603,686,190.43/542,483.45
  6. Step 6: Final answer
    x = 574,402.20

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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.