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Finding the Fourth Proportional to 542,918.20, 812,338.15 and 337,815.19

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Solution

The fourth proportional to 542,918.20, 812,338.15 and 337,815.19 is: 505,453.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,918.20 : 812,338.15 = 337,815.19 : x
  2. Step 2: Convert to fraction form
    542,918.20/812,338.15 = 337,815.19/x
  3. Step 3: Cross multiply
    542,918.20x = 812,338.15 × 337,815.19
  4. Step 4: Simplify right side
    542,918.20x = 274,420,166,486.50
  5. Step 5: Solve for x
    x = 274,420,166,486.50/542,918.20
  6. Step 6: Final answer
    x = 505,453.98

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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.