Home / 2,390,863.40-3,299,362.44-1,303,131.60

Finding the Fourth Proportional to 2,390,863.40, 3,299,362.44 and 1,303,131.60

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Solution

The fourth proportional to 2,390,863.40, 3,299,362.44 and 1,303,131.60 is: 1,798,305.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,390,863.40 : 3,299,362.44 = 1,303,131.60 : x
  2. Step 2: Convert to fraction form
    2,390,863.40/3,299,362.44 = 1,303,131.60/x
  3. Step 3: Cross multiply
    2,390,863.40x = 3,299,362.44 × 1,303,131.60
  4. Step 4: Simplify right side
    2,390,863.40x = 4,299,503,455,417.10
  5. Step 5: Solve for x
    x = 4,299,503,455,417.10/2,390,863.40
  6. Step 6: Final answer
    x = 1,798,305.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.