Home / 2,071,720.67-2,859,415.70-1,392,263.51

Finding the Fourth Proportional to 2,071,720.67, 2,859,415.70 and 1,392,263.51

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Solution

The fourth proportional to 2,071,720.67, 2,859,415.70 and 1,392,263.51 is: 1,921,620.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,071,720.67 : 2,859,415.70 = 1,392,263.51 : x
  2. Step 2: Convert to fraction form
    2,071,720.67/2,859,415.70 = 1,392,263.51/x
  3. Step 3: Cross multiply
    2,071,720.67x = 2,859,415.70 × 1,392,263.51
  4. Step 4: Simplify right side
    2,071,720.67x = 3,981,060,117,772.71
  5. Step 5: Solve for x
    x = 3,981,060,117,772.71/2,071,720.67
  6. Step 6: Final answer
    x = 1,921,620.12

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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.