Home / 1,123,964.64-1,685,503.18-449,920.32

Finding the Fourth Proportional to 1,123,964.64, 1,685,503.18 and 449,920.32

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Solution

The fourth proportional to 1,123,964.64, 1,685,503.18 and 449,920.32 is: 674,702.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,123,964.64 : 1,685,503.18 = 449,920.32 : x
  2. Step 2: Convert to fraction form
    1,123,964.64/1,685,503.18 = 449,920.32/x
  3. Step 3: Cross multiply
    1,123,964.64x = 1,685,503.18 × 449,920.32
  4. Step 4: Simplify right side
    1,123,964.64x = 758,342,130,106.62
  5. Step 5: Solve for x
    x = 758,342,130,106.62/1,123,964.64
  6. Step 6: Final answer
    x = 674,702.84

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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.