Home / 1,289,883.06-1,779,956.37-716,888.34

Finding the Fourth Proportional to 1,289,883.06, 1,779,956.37 and 716,888.34

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Solution

The fourth proportional to 1,289,883.06, 1,779,956.37 and 716,888.34 is: 989,260.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,883.06 : 1,779,956.37 = 716,888.34 : x
  2. Step 2: Convert to fraction form
    1,289,883.06/1,779,956.37 = 716,888.34/x
  3. Step 3: Cross multiply
    1,289,883.06x = 1,779,956.37 × 716,888.34
  4. Step 4: Simplify right side
    1,289,883.06x = 1,276,029,967,361.73
  5. Step 5: Solve for x
    x = 1,276,029,967,361.73/1,289,883.06
  6. Step 6: Final answer
    x = 989,260.19

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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.