Home / 1,335,340.96-2,003,339.76-388,719.88

Finding the Fourth Proportional to 1,335,340.96, 2,003,339.76 and 388,719.88

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Solution

The fourth proportional to 1,335,340.96, 2,003,339.76 and 388,719.88 is: 583,175.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,335,340.96 : 2,003,339.76 = 388,719.88 : x
  2. Step 2: Convert to fraction form
    1,335,340.96/2,003,339.76 = 388,719.88/x
  3. Step 3: Cross multiply
    1,335,340.96x = 2,003,339.76 × 388,719.88
  4. Step 4: Simplify right side
    1,335,340.96x = 778,737,991,106.43
  5. Step 5: Solve for x
    x = 778,737,991,106.43/1,335,340.96
  6. Step 6: Final answer
    x = 583,175.39

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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.