Home / 2,539,663.56-3,809,611.98-646,421.40

Finding the Fourth Proportional to 2,539,663.56, 3,809,611.98 and 646,421.40

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Solution

The fourth proportional to 2,539,663.56, 3,809,611.98 and 646,421.40 is: 969,661.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,539,663.56 : 3,809,611.98 = 646,421.40 : x
  2. Step 2: Convert to fraction form
    2,539,663.56/3,809,611.98 = 646,421.40/x
  3. Step 3: Cross multiply
    2,539,663.56x = 3,809,611.98 × 646,421.40
  4. Step 4: Simplify right side
    2,539,663.56x = 2,462,614,709,568.37
  5. Step 5: Solve for x
    x = 2,462,614,709,568.37/2,539,663.56
  6. Step 6: Final answer
    x = 969,661.79

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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.