Home / 1,898,144.82-2,619,330.21-1,038,721.86

Finding the Fourth Proportional to 1,898,144.82, 2,619,330.21 and 1,038,721.86

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Solution

The fourth proportional to 1,898,144.82, 2,619,330.21 and 1,038,721.86 is: 1,433,376.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,898,144.82 : 2,619,330.21 = 1,038,721.86 : x
  2. Step 2: Convert to fraction form
    1,898,144.82/2,619,330.21 = 1,038,721.86/x
  3. Step 3: Cross multiply
    1,898,144.82x = 2,619,330.21 × 1,038,721.86
  4. Step 4: Simplify right side
    1,898,144.82x = 2,720,755,547,685.39
  5. Step 5: Solve for x
    x = 2,720,755,547,685.39/1,898,144.82
  6. Step 6: Final answer
    x = 1,433,376.17

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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.