Home / 1,358,987.34-2,038,481.43-399,443.11

Finding the Fourth Proportional to 1,358,987.34, 2,038,481.43 and 399,443.11

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Solution

The fourth proportional to 1,358,987.34, 2,038,481.43 and 399,443.11 is: 599,164.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,358,987.34 : 2,038,481.43 = 399,443.11 : x
  2. Step 2: Convert to fraction form
    1,358,987.34/2,038,481.43 = 399,443.11/x
  3. Step 3: Cross multiply
    1,358,987.34x = 2,038,481.43 × 399,443.11
  4. Step 4: Simplify right side
    1,358,987.34x = 814,257,362,076.45
  5. Step 5: Solve for x
    x = 814,257,362,076.45/1,358,987.34
  6. Step 6: Final answer
    x = 599,164.79

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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.