Home / 1,979,870.03-2,732,259.32-1,291,981.98

Finding the Fourth Proportional to 1,979,870.03, 2,732,259.32 and 1,291,981.98

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Solution

The fourth proportional to 1,979,870.03, 2,732,259.32 and 1,291,981.98 is: 1,782,960.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,979,870.03 : 2,732,259.32 = 1,291,981.98 : x
  2. Step 2: Convert to fraction form
    1,979,870.03/2,732,259.32 = 1,291,981.98/x
  3. Step 3: Cross multiply
    1,979,870.03x = 2,732,259.32 × 1,291,981.98
  4. Step 4: Simplify right side
    1,979,870.03x = 3,530,029,799,667.14
  5. Step 5: Solve for x
    x = 3,530,029,799,667.14/1,979,870.03
  6. Step 6: Final answer
    x = 1,782,960.37

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.