Home / 3,116,187.20-4,671,656.40-1,620,279.20

Finding the Fourth Proportional to 3,116,187.20, 4,671,656.40 and 1,620,279.20

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Solution

The fourth proportional to 3,116,187.20, 4,671,656.40 and 1,620,279.20 is: 2,429,054.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,116,187.20 : 4,671,656.40 = 1,620,279.20 : x
  2. Step 2: Convert to fraction form
    3,116,187.20/4,671,656.40 = 1,620,279.20/x
  3. Step 3: Cross multiply
    3,116,187.20x = 4,671,656.40 × 1,620,279.20
  4. Step 4: Simplify right side
    3,116,187.20x = 7,569,387,694,466.88
  5. Step 5: Solve for x
    x = 7,569,387,694,466.88/3,116,187.20
  6. Step 6: Final answer
    x = 2,429,054.23

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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.