Home / 1,297,476.36-1,946,400.30-398,993.40

Finding the Fourth Proportional to 1,297,476.36, 1,946,400.30 and 398,993.40

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Solution

The fourth proportional to 1,297,476.36, 1,946,400.30 and 398,993.40 is: 598,547.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,297,476.36 : 1,946,400.30 = 398,993.40 : x
  2. Step 2: Convert to fraction form
    1,297,476.36/1,946,400.30 = 398,993.40/x
  3. Step 3: Cross multiply
    1,297,476.36x = 1,946,400.30 × 398,993.40
  4. Step 4: Simplify right side
    1,297,476.36x = 776,600,873,458.02
  5. Step 5: Solve for x
    x = 776,600,873,458.02/1,297,476.36
  6. Step 6: Final answer
    x = 598,547.22

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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.