Home / 2,153,784.40-3,229,121.40-1,207,445.20

Finding the Fourth Proportional to 2,153,784.40, 3,229,121.40 and 1,207,445.20

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Solution

The fourth proportional to 2,153,784.40, 3,229,121.40 and 1,207,445.20 is: 1,810,295.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,153,784.40 : 3,229,121.40 = 1,207,445.20 : x
  2. Step 2: Convert to fraction form
    2,153,784.40/3,229,121.40 = 1,207,445.20/x
  3. Step 3: Cross multiply
    2,153,784.40x = 3,229,121.40 × 1,207,445.20
  4. Step 4: Simplify right side
    2,153,784.40x = 3,898,987,134,647.28
  5. Step 5: Solve for x
    x = 3,898,987,134,647.28/2,153,784.40
  6. Step 6: Final answer
    x = 1,810,295.93

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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.