Home / 1,028,740.14-1,543,241.43-318,810.78

Finding the Fourth Proportional to 1,028,740.14, 1,543,241.43 and 318,810.78

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Solution

The fourth proportional to 1,028,740.14, 1,543,241.43 and 318,810.78 is: 478,256.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,028,740.14 : 1,543,241.43 = 318,810.78 : x
  2. Step 2: Convert to fraction form
    1,028,740.14/1,543,241.43 = 318,810.78/x
  3. Step 3: Cross multiply
    1,028,740.14x = 1,543,241.43 × 318,810.78
  4. Step 4: Simplify right side
    1,028,740.14x = 492,002,004,026.62
  5. Step 5: Solve for x
    x = 492,002,004,026.62/1,028,740.14
  6. Step 6: Final answer
    x = 478,256.84

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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.