Home / 1,634,977.80-2,256,465.78-990,379.08

Finding the Fourth Proportional to 1,634,977.80, 2,256,465.78 and 990,379.08

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Solution

The fourth proportional to 1,634,977.80, 2,256,465.78 and 990,379.08 is: 1,366,842.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,634,977.80 : 2,256,465.78 = 990,379.08 : x
  2. Step 2: Convert to fraction form
    1,634,977.80/2,256,465.78 = 990,379.08/x
  3. Step 3: Cross multiply
    1,634,977.80x = 2,256,465.78 × 990,379.08
  4. Step 4: Simplify right side
    1,634,977.80x = 2,234,756,503,247.88
  5. Step 5: Solve for x
    x = 2,234,756,503,247.88/1,634,977.80
  6. Step 6: Final answer
    x = 1,366,842.11

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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.