Home / 1,940,920.68-2,911,653.24-678,461.16

Finding the Fourth Proportional to 1,940,920.68, 2,911,653.24 and 678,461.16

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Solution

The fourth proportional to 1,940,920.68, 2,911,653.24 and 678,461.16 is: 1,017,786.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,940,920.68 : 2,911,653.24 = 678,461.16 : x
  2. Step 2: Convert to fraction form
    1,940,920.68/2,911,653.24 = 678,461.16/x
  3. Step 3: Cross multiply
    1,940,920.68x = 2,911,653.24 × 678,461.16
  4. Step 4: Simplify right side
    1,940,920.68x = 1,975,443,634,728.16
  5. Step 5: Solve for x
    x = 1,975,443,634,728.16/1,940,920.68
  6. Step 6: Final answer
    x = 1,017,786.90

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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.