Home / 1,728,409.20-2,592,613.80-1,131,212.40

Finding the Fourth Proportional to 1,728,409.20, 2,592,613.80 and 1,131,212.40

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Solution

The fourth proportional to 1,728,409.20, 2,592,613.80 and 1,131,212.40 is: 1,696,818.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,728,409.20 : 2,592,613.80 = 1,131,212.40 : x
  2. Step 2: Convert to fraction form
    1,728,409.20/2,592,613.80 = 1,131,212.40/x
  3. Step 3: Cross multiply
    1,728,409.20x = 2,592,613.80 × 1,131,212.40
  4. Step 4: Simplify right side
    1,728,409.20x = 2,932,796,878,971.12
  5. Step 5: Solve for x
    x = 2,932,796,878,971.12/1,728,409.20
  6. Step 6: Final answer
    x = 1,696,818.60

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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.