Home / 1,980,670.77-2,972,109.99-1,069,834.86

Finding the Fourth Proportional to 1,980,670.77, 2,972,109.99 and 1,069,834.86

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Solution

The fourth proportional to 1,980,670.77, 2,972,109.99 and 1,069,834.86 is: 1,605,348.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,980,670.77 : 2,972,109.99 = 1,069,834.86 : x
  2. Step 2: Convert to fraction form
    1,980,670.77/2,972,109.99 = 1,069,834.86/x
  3. Step 3: Cross multiply
    1,980,670.77x = 2,972,109.99 × 1,069,834.86
  4. Step 4: Simplify right side
    1,980,670.77x = 3,179,666,875,056.25
  5. Step 5: Solve for x
    x = 3,179,666,875,056.25/1,980,670.77
  6. Step 6: Final answer
    x = 1,605,348.51

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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.