Home / 2,167,679.48-2,990,786.90-1,249,836.48

Finding the Fourth Proportional to 2,167,679.48, 2,990,786.90 and 1,249,836.48

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Solution

The fourth proportional to 2,167,679.48, 2,990,786.90 and 1,249,836.48 is: 1,724,422.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,167,679.48 : 2,990,786.90 = 1,249,836.48 : x
  2. Step 2: Convert to fraction form
    2,167,679.48/2,990,786.90 = 1,249,836.48/x
  3. Step 3: Cross multiply
    2,167,679.48x = 2,990,786.90 × 1,249,836.48
  4. Step 4: Simplify right side
    2,167,679.48x = 3,737,994,565,276.93
  5. Step 5: Solve for x
    x = 3,737,994,565,276.93/2,167,679.48
  6. Step 6: Final answer
    x = 1,724,422.18

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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.