Home / 1,325,896.80-1,990,400.40-1,316,565.60

Finding the Fourth Proportional to 1,325,896.80, 1,990,400.40 and 1,316,565.60

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Solution

The fourth proportional to 1,325,896.80, 1,990,400.40 and 1,316,565.60 is: 1,976,392.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,325,896.80 : 1,990,400.40 = 1,316,565.60 : x
  2. Step 2: Convert to fraction form
    1,325,896.80/1,990,400.40 = 1,316,565.60/x
  3. Step 3: Cross multiply
    1,325,896.80x = 1,990,400.40 × 1,316,565.60
  4. Step 4: Simplify right side
    1,325,896.80x = 2,620,492,696,866.24
  5. Step 5: Solve for x
    x = 2,620,492,696,866.24/1,325,896.80
  6. Step 6: Final answer
    x = 1,976,392.66

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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.