Home / 1,434,094.80-1,979,019.68-789,490.32

Finding the Fourth Proportional to 1,434,094.80, 1,979,019.68 and 789,490.32

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Solution

The fourth proportional to 1,434,094.80, 1,979,019.68 and 789,490.32 is: 1,089,479.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,434,094.80 : 1,979,019.68 = 789,490.32 : x
  2. Step 2: Convert to fraction form
    1,434,094.80/1,979,019.68 = 789,490.32/x
  3. Step 3: Cross multiply
    1,434,094.80x = 1,979,019.68 × 789,490.32
  4. Step 4: Simplify right side
    1,434,094.80x = 1,562,416,880,449.50
  5. Step 5: Solve for x
    x = 1,562,416,880,449.50/1,434,094.80
  6. Step 6: Final answer
    x = 1,089,479.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.