Home / 1,996,501.68-2,994,999.84-781,920.72

Finding the Fourth Proportional to 1,996,501.68, 2,994,999.84 and 781,920.72

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Solution

The fourth proportional to 1,996,501.68, 2,994,999.84 and 781,920.72 is: 1,172,977.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,996,501.68 : 2,994,999.84 = 781,920.72 : x
  2. Step 2: Convert to fraction form
    1,996,501.68/2,994,999.84 = 781,920.72/x
  3. Step 3: Cross multiply
    1,996,501.68x = 2,994,999.84 × 781,920.72
  4. Step 4: Simplify right side
    1,996,501.68x = 2,341,852,431,292.68
  5. Step 5: Solve for x
    x = 2,341,852,431,292.68/1,996,501.68
  6. Step 6: Final answer
    x = 1,172,977.94

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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.