Home / 1,335,339.96-2,003,338.26-388,718.88

Finding the Fourth Proportional to 1,335,339.96, 2,003,338.26 and 388,718.88

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Solution

The fourth proportional to 1,335,339.96, 2,003,338.26 and 388,718.88 is: 583,173.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,335,339.96 : 2,003,338.26 = 388,718.88 : x
  2. Step 2: Convert to fraction form
    1,335,339.96/2,003,338.26 = 388,718.88/x
  3. Step 3: Cross multiply
    1,335,339.96x = 2,003,338.26 × 388,718.88
  4. Step 4: Simplify right side
    1,335,339.96x = 778,735,404,688.35
  5. Step 5: Solve for x
    x = 778,735,404,688.35/1,335,339.96
  6. Step 6: Final answer
    x = 583,173.89

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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.