Home / 2,058,012.80-3,087,019.20-638,212.40

Finding the Fourth Proportional to 2,058,012.80, 3,087,019.20 and 638,212.40

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Solution

The fourth proportional to 2,058,012.80, 3,087,019.20 and 638,212.40 is: 957,318.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,058,012.80 : 3,087,019.20 = 638,212.40 : x
  2. Step 2: Convert to fraction form
    2,058,012.80/3,087,019.20 = 638,212.40/x
  3. Step 3: Cross multiply
    2,058,012.80x = 3,087,019.20 × 638,212.40
  4. Step 4: Simplify right side
    2,058,012.80x = 1,970,173,932,478.08
  5. Step 5: Solve for x
    x = 1,970,173,932,478.08/2,058,012.80
  6. Step 6: Final answer
    x = 957,318.60

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1.5x scale

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.