Home / 871,441.20-1,307,356.20-338,914.80

Finding the Fourth Proportional to 871,441.20, 1,307,356.20 and 338,914.80

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Solution

The fourth proportional to 871,441.20, 1,307,356.20 and 338,914.80 is: 508,447.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,441.20 : 1,307,356.20 = 338,914.80 : x
  2. Step 2: Convert to fraction form
    871,441.20/1,307,356.20 = 338,914.80/x
  3. Step 3: Cross multiply
    871,441.20x = 1,307,356.20 × 338,914.80
  4. Step 4: Simplify right side
    871,441.20x = 443,082,365,051.76
  5. Step 5: Solve for x
    x = 443,082,365,051.76/871,441.20
  6. Step 6: Final answer
    x = 508,447.80

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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.