Home / 1,397,488.50-1,928,602.55-785,833.81

Finding the Fourth Proportional to 1,397,488.50, 1,928,602.55 and 785,833.81

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Solution

The fourth proportional to 1,397,488.50, 1,928,602.55 and 785,833.81 is: 1,084,489.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,397,488.50 : 1,928,602.55 = 785,833.81 : x
  2. Step 2: Convert to fraction form
    1,397,488.50/1,928,602.55 = 785,833.81/x
  3. Step 3: Cross multiply
    1,397,488.50x = 1,928,602.55 × 785,833.81
  4. Step 4: Simplify right side
    1,397,488.50x = 1,515,561,089,842.22
  5. Step 5: Solve for x
    x = 1,515,561,089,842.22/1,397,488.50
  6. Step 6: Final answer
    x = 1,084,489.13

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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.