Home / 4,839,853.40-7,259,980.44-1,428,140

Finding the Fourth Proportional to 4,839,853.40, 7,259,980.44 and 1,428,140

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Solution

The fourth proportional to 4,839,853.40, 7,259,980.44 and 1,428,140 is: 2,142,269.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,839,853.40 : 7,259,980.44 = 1,428,140 : x
  2. Step 2: Convert to fraction form
    4,839,853.40/7,259,980.44 = 1,428,140/x
  3. Step 3: Cross multiply
    4,839,853.40x = 7,259,980.44 × 1,428,140
  4. Step 4: Simplify right side
    4,839,853.40x = 10,368,268,465,581.60
  5. Step 5: Solve for x
    x = 10,368,268,465,581.60/4,839,853.40
  6. Step 6: Final answer
    x = 2,142,269.12

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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.