Home / 1,434,387.14-1,979,497.81-789,830.40

Finding the Fourth Proportional to 1,434,387.14, 1,979,497.81 and 789,830.40

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Solution

The fourth proportional to 1,434,387.14, 1,979,497.81 and 789,830.40 is: 1,089,989.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,434,387.14 : 1,979,497.81 = 789,830.40 : x
  2. Step 2: Convert to fraction form
    1,434,387.14/1,979,497.81 = 789,830.40/x
  3. Step 3: Cross multiply
    1,434,387.14x = 1,979,497.81 × 789,830.40
  4. Step 4: Simplify right side
    1,434,387.14x = 1,563,467,543,122.27
  5. Step 5: Solve for x
    x = 1,563,467,543,122.27/1,434,387.14
  6. Step 6: Final answer
    x = 1,089,989.93

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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.