Home / 1,898,178.39-2,619,486.32-1,038,738.69

Finding the Fourth Proportional to 1,898,178.39, 2,619,486.32 and 1,038,738.69

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Solution

The fourth proportional to 1,898,178.39, 2,619,486.32 and 1,038,738.69 is: 1,433,459.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,898,178.39 : 2,619,486.32 = 1,038,738.69 : x
  2. Step 2: Convert to fraction form
    1,898,178.39/2,619,486.32 = 1,038,738.69/x
  3. Step 3: Cross multiply
    1,898,178.39x = 2,619,486.32 × 1,038,738.69
  4. Step 4: Simplify right side
    1,898,178.39x = 2,720,961,783,316.03
  5. Step 5: Solve for x
    x = 2,720,961,783,316.03/1,898,178.39
  6. Step 6: Final answer
    x = 1,433,459.47

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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.