Home / 1,989,371.58-2,984,639.55-641,506.87

Finding the Fourth Proportional to 1,989,371.58, 2,984,639.55 and 641,506.87

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Solution

The fourth proportional to 1,989,371.58, 2,984,639.55 and 641,506.87 is: 962,448.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,989,371.58 : 2,984,639.55 = 641,506.87 : x
  2. Step 2: Convert to fraction form
    1,989,371.58/2,984,639.55 = 641,506.87/x
  3. Step 3: Cross multiply
    1,989,371.58x = 2,984,639.55 × 641,506.87
  4. Step 4: Simplify right side
    1,989,371.58x = 1,914,666,775,798.71
  5. Step 5: Solve for x
    x = 1,914,666,775,798.71/1,989,371.58
  6. Step 6: Final answer
    x = 962,448.04

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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.