Home / 1,102,061.20-1,649,938.20-678,485.20

Finding the Fourth Proportional to 1,102,061.20, 1,649,938.20 and 678,485.20

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Solution

The fourth proportional to 1,102,061.20, 1,649,938.20 and 678,485.20 is: 1,015,786.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,102,061.20 : 1,649,938.20 = 678,485.20 : x
  2. Step 2: Convert to fraction form
    1,102,061.20/1,649,938.20 = 678,485.20/x
  3. Step 3: Cross multiply
    1,102,061.20x = 1,649,938.20 × 678,485.20
  4. Step 4: Simplify right side
    1,102,061.20x = 1,119,458,649,614.64
  5. Step 5: Solve for x
    x = 1,119,458,649,614.64/1,102,061.20
  6. Step 6: Final answer
    x = 1,015,786.28

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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.