Home / 1,377,863.22-2,066,841.44-479,312.72

Finding the Fourth Proportional to 1,377,863.22, 2,066,841.44 and 479,312.72

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Solution

The fourth proportional to 1,377,863.22, 2,066,841.44 and 479,312.72 is: 718,985.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,377,863.22 : 2,066,841.44 = 479,312.72 : x
  2. Step 2: Convert to fraction form
    1,377,863.22/2,066,841.44 = 479,312.72/x
  3. Step 3: Cross multiply
    1,377,863.22x = 2,066,841.44 × 479,312.72
  4. Step 4: Simplify right side
    1,377,863.22x = 990,663,392,415.12
  5. Step 5: Solve for x
    x = 990,663,392,415.12/1,377,863.22
  6. Step 6: Final answer
    x = 718,985.29

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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.