Home / 1,049,680.40-1,574,131.80-339,731.60

Finding the Fourth Proportional to 1,049,680.40, 1,574,131.80 and 339,731.60

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Solution

The fourth proportional to 1,049,680.40, 1,574,131.80 and 339,731.60 is: 509,471.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,049,680.40 : 1,574,131.80 = 339,731.60 : x
  2. Step 2: Convert to fraction form
    1,049,680.40/1,574,131.80 = 339,731.60/x
  3. Step 3: Cross multiply
    1,049,680.40x = 1,574,131.80 × 339,731.60
  4. Step 4: Simplify right side
    1,049,680.40x = 534,782,315,024.88
  5. Step 5: Solve for x
    x = 534,782,315,024.88/1,049,680.40
  6. Step 6: Final answer
    x = 509,471.56

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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.