Home / 2,058,231.80-3,087,347.70-638,431.40

Finding the Fourth Proportional to 2,058,231.80, 3,087,347.70 and 638,431.40

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Solution

The fourth proportional to 2,058,231.80, 3,087,347.70 and 638,431.40 is: 957,647.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,058,231.80 : 3,087,347.70 = 638,431.40 : x
  2. Step 2: Convert to fraction form
    2,058,231.80/3,087,347.70 = 638,431.40/x
  3. Step 3: Cross multiply
    2,058,231.80x = 3,087,347.70 × 638,431.40
  4. Step 4: Simplify right side
    2,058,231.80x = 1,971,059,714,397.78
  5. Step 5: Solve for x
    x = 1,971,059,714,397.78/2,058,231.80
  6. Step 6: Final answer
    x = 957,647.10

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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.