Home / 2,565,145.40-3,845,180.10-1,214,934.80

Finding the Fourth Proportional to 2,565,145.40, 3,845,180.10 and 1,214,934.80

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Solution

The fourth proportional to 2,565,145.40, 3,845,180.10 and 1,214,934.80 is: 1,821,200.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,565,145.40 : 3,845,180.10 = 1,214,934.80 : x
  2. Step 2: Convert to fraction form
    2,565,145.40/3,845,180.10 = 1,214,934.80/x
  3. Step 3: Cross multiply
    2,565,145.40x = 3,845,180.10 × 1,214,934.80
  4. Step 4: Simplify right side
    2,565,145.40x = 4,671,643,115,757.48
  5. Step 5: Solve for x
    x = 4,671,643,115,757.48/2,565,145.40
  6. Step 6: Final answer
    x = 1,821,200.12

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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.