Home / 2,986,504.86-4,479,775.11-742,642.86

Finding the Fourth Proportional to 2,986,504.86, 4,479,775.11 and 742,642.86

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Solution

The fourth proportional to 2,986,504.86, 4,479,775.11 and 742,642.86 is: 1,113,968.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,986,504.86 : 4,479,775.11 = 742,642.86 : x
  2. Step 2: Convert to fraction form
    2,986,504.86/4,479,775.11 = 742,642.86/x
  3. Step 3: Cross multiply
    2,986,504.86x = 4,479,775.11 × 742,642.86
  4. Step 4: Simplify right side
    2,986,504.86x = 3,326,872,999,847.22
  5. Step 5: Solve for x
    x = 3,326,872,999,847.22/2,986,504.86
  6. Step 6: Final answer
    x = 1,113,968.72

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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.