Home / 1,689,229.54-2,533,962.57-678,351.43

Finding the Fourth Proportional to 1,689,229.54, 2,533,962.57 and 678,351.43

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Solution

The fourth proportional to 1,689,229.54, 2,533,962.57 and 678,351.43 is: 1,017,574.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,689,229.54 : 2,533,962.57 = 678,351.43 : x
  2. Step 2: Convert to fraction form
    1,689,229.54/2,533,962.57 = 678,351.43/x
  3. Step 3: Cross multiply
    1,689,229.54x = 2,533,962.57 × 678,351.43
  4. Step 4: Simplify right side
    1,689,229.54x = 1,718,917,132,925.98
  5. Step 5: Solve for x
    x = 1,718,917,132,925.98/1,689,229.54
  6. Step 6: Final answer
    x = 1,017,574.64

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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.