Home / 1,229,689.94-1,696,930.04-678,427.43

Finding the Fourth Proportional to 1,229,689.94, 1,696,930.04 and 678,427.43

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Solution

The fourth proportional to 1,229,689.94, 1,696,930.04 and 678,427.43 is: 936,206.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,229,689.94 : 1,696,930.04 = 678,427.43 : x
  2. Step 2: Convert to fraction form
    1,229,689.94/1,696,930.04 = 678,427.43/x
  3. Step 3: Cross multiply
    1,229,689.94x = 1,696,930.04 × 678,427.43
  4. Step 4: Simplify right side
    1,229,689.94x = 1,151,243,882,534.86
  5. Step 5: Solve for x
    x = 1,151,243,882,534.86/1,229,689.94
  6. Step 6: Final answer
    x = 936,206.64

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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.