Home / 939,645.31-1,409,675.72-399,873.19

Finding the Fourth Proportional to 939,645.31, 1,409,675.72 and 399,873.19

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Solution

The fourth proportional to 939,645.31, 1,409,675.72 and 399,873.19 is: 599,898.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,645.31 : 1,409,675.72 = 399,873.19 : x
  2. Step 2: Convert to fraction form
    939,645.31/1,409,675.72 = 399,873.19/x
  3. Step 3: Cross multiply
    939,645.31x = 1,409,675.72 × 399,873.19
  4. Step 4: Simplify right side
    939,645.31x = 563,691,527,021.95
  5. Step 5: Solve for x
    x = 563,691,527,021.95/939,645.31
  6. Step 6: Final answer
    x = 599,898.20

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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.