Home / 2,078,840.20-3,116,705.10-1,133,278.60

Finding the Fourth Proportional to 2,078,840.20, 3,116,705.10 and 1,133,278.60

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Solution

The fourth proportional to 2,078,840.20, 3,116,705.10 and 1,133,278.60 is: 1,699,070.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,078,840.20 : 3,116,705.10 = 1,133,278.60 : x
  2. Step 2: Convert to fraction form
    2,078,840.20/3,116,705.10 = 1,133,278.60/x
  3. Step 3: Cross multiply
    2,078,840.20x = 3,116,705.10 × 1,133,278.60
  4. Step 4: Simplify right side
    2,078,840.20x = 3,532,095,192,340.86
  5. Step 5: Solve for x
    x = 3,532,095,192,340.86/2,078,840.20
  6. Step 6: Final answer
    x = 1,699,070.08

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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.