Home / 2,189,088.26-3,020,814.86-1,222,279.76

Finding the Fourth Proportional to 2,189,088.26, 3,020,814.86 and 1,222,279.76

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Solution

The fourth proportional to 2,189,088.26, 3,020,814.86 and 1,222,279.76 is: 1,686,675.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,189,088.26 : 3,020,814.86 = 1,222,279.76 : x
  2. Step 2: Convert to fraction form
    2,189,088.26/3,020,814.86 = 1,222,279.76/x
  3. Step 3: Cross multiply
    2,189,088.26x = 3,020,814.86 × 1,222,279.76
  4. Step 4: Simplify right side
    2,189,088.26x = 3,692,280,862,085.23
  5. Step 5: Solve for x
    x = 3,692,280,862,085.23/2,189,088.26
  6. Step 6: Final answer
    x = 1,686,675.19

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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.