Home / 1,990,874.47-2,981,661.60-1,830,113.57

Finding the Fourth Proportional to 1,990,874.47, 2,981,661.60 and 1,830,113.57

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Solution

The fourth proportional to 1,990,874.47, 2,981,661.60 and 1,830,113.57 is: 2,740,895.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,990,874.47 : 2,981,661.60 = 1,830,113.57 : x
  2. Step 2: Convert to fraction form
    1,990,874.47/2,981,661.60 = 1,830,113.57/x
  3. Step 3: Cross multiply
    1,990,874.47x = 2,981,661.60 × 1,830,113.57
  4. Step 4: Simplify right side
    1,990,874.47x = 5,456,779,355,307.91
  5. Step 5: Solve for x
    x = 5,456,779,355,307.91/1,990,874.47
  6. Step 6: Final answer
    x = 2,740,895.74

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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.