Home / 3,878,639.68-5,815,256.28-1,718,490.64

Finding the Fourth Proportional to 3,878,639.68, 5,815,256.28 and 1,718,490.64

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Solution

The fourth proportional to 3,878,639.68, 5,815,256.28 and 1,718,490.64 is: 2,576,538.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,878,639.68 : 5,815,256.28 = 1,718,490.64 : x
  2. Step 2: Convert to fraction form
    3,878,639.68/5,815,256.28 = 1,718,490.64/x
  3. Step 3: Cross multiply
    3,878,639.68x = 5,815,256.28 × 1,718,490.64
  4. Step 4: Simplify right side
    3,878,639.68x = 9,993,463,486,381.22
  5. Step 5: Solve for x
    x = 9,993,463,486,381.22/3,878,639.68
  6. Step 6: Final answer
    x = 2,576,538.25

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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.