Home / 1,089,687.79-1,502,917.09-707,837.59

Finding the Fourth Proportional to 1,089,687.79, 1,502,917.09 and 707,837.59

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Solution

The fourth proportional to 1,089,687.79, 1,502,917.09 and 707,837.59 is: 976,262.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,089,687.79 : 1,502,917.09 = 707,837.59 : x
  2. Step 2: Convert to fraction form
    1,089,687.79/1,502,917.09 = 707,837.59/x
  3. Step 3: Cross multiply
    1,089,687.79x = 1,502,917.09 × 707,837.59
  4. Step 4: Simplify right side
    1,089,687.79x = 1,063,821,210,955.41
  5. Step 5: Solve for x
    x = 1,063,821,210,955.41/1,089,687.79
  6. Step 6: Final answer
    x = 976,262.39

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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.