Home / 1,898,145.21-2,619,440.14-1,038,705.57

Finding the Fourth Proportional to 1,898,145.21, 2,619,440.14 and 1,038,705.57

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Solution

The fourth proportional to 1,898,145.21, 2,619,440.14 and 1,038,705.57 is: 1,433,413.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,898,145.21 : 2,619,440.14 = 1,038,705.57 : x
  2. Step 2: Convert to fraction form
    1,898,145.21/2,619,440.14 = 1,038,705.57/x
  3. Step 3: Cross multiply
    1,898,145.21x = 2,619,440.14 × 1,038,705.57
  4. Step 4: Simplify right side
    1,898,145.21x = 2,720,827,063,699.58
  5. Step 5: Solve for x
    x = 2,720,827,063,699.58/1,898,145.21
  6. Step 6: Final answer
    x = 1,433,413.55

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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.