Home / 1,990,142.90-2,746,405.32-1,130,750.31

Finding the Fourth Proportional to 1,990,142.90, 2,746,405.32 and 1,130,750.31

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Solution

The fourth proportional to 1,990,142.90, 2,746,405.32 and 1,130,750.31 is: 1,560,440.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,990,142.90 : 2,746,405.32 = 1,130,750.31 : x
  2. Step 2: Convert to fraction form
    1,990,142.90/2,746,405.32 = 1,130,750.31/x
  3. Step 3: Cross multiply
    1,990,142.90x = 2,746,405.32 × 1,130,750.31
  4. Step 4: Simplify right side
    1,990,142.90x = 3,105,498,666,975.65
  5. Step 5: Solve for x
    x = 3,105,498,666,975.65/1,990,142.90
  6. Step 6: Final answer
    x = 1,560,440.04

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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.