Home / 1,434,491.81-1,979,598.70-789,910.47

Finding the Fourth Proportional to 1,434,491.81, 1,979,598.70 and 789,910.47

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Solution

The fourth proportional to 1,434,491.81, 1,979,598.70 and 789,910.47 is: 1,090,076.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,434,491.81 : 1,979,598.70 = 789,910.47 : x
  2. Step 2: Convert to fraction form
    1,434,491.81/1,979,598.70 = 789,910.47/x
  3. Step 3: Cross multiply
    1,434,491.81x = 1,979,598.70 × 789,910.47
  4. Step 4: Simplify right side
    1,434,491.81x = 1,563,705,740,515.78
  5. Step 5: Solve for x
    x = 1,563,705,740,515.78/1,434,491.81
  6. Step 6: Final answer
    x = 1,090,076.45

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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.