Home / 1,102,054.20-1,649,927.70-678,478.20

Finding the Fourth Proportional to 1,102,054.20, 1,649,927.70 and 678,478.20

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Solution

The fourth proportional to 1,102,054.20, 1,649,927.70 and 678,478.20 is: 1,015,775.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,102,054.20 : 1,649,927.70 = 678,478.20 : x
  2. Step 2: Convert to fraction form
    1,102,054.20/1,649,927.70 = 678,478.20/x
  3. Step 3: Cross multiply
    1,102,054.20x = 1,649,927.70 × 678,478.20
  4. Step 4: Simplify right side
    1,102,054.20x = 1,119,439,976,026.14
  5. Step 5: Solve for x
    x = 1,119,439,976,026.14/1,102,054.20
  6. Step 6: Final answer
    x = 1,015,775.79

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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.