Home / 1,297,454.20-1,946,367.30-398,971.40

Finding the Fourth Proportional to 1,297,454.20, 1,946,367.30 and 398,971.40

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Solution

The fourth proportional to 1,297,454.20, 1,946,367.30 and 398,971.40 is: 598,514.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,297,454.20 : 1,946,367.30 = 398,971.40 : x
  2. Step 2: Convert to fraction form
    1,297,454.20/1,946,367.30 = 398,971.40/x
  3. Step 3: Cross multiply
    1,297,454.20x = 1,946,367.30 × 398,971.40
  4. Step 4: Simplify right side
    1,297,454.20x = 776,544,886,595.22
  5. Step 5: Solve for x
    x = 776,544,886,595.22/1,297,454.20
  6. Step 6: Final answer
    x = 598,514.30

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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.