Home / 1,438,913.74-1,985,705.26-785,540.78

Finding the Fourth Proportional to 1,438,913.74, 1,985,705.26 and 785,540.78

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Solution

The fourth proportional to 1,438,913.74, 1,985,705.26 and 785,540.78 is: 1,084,048.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,438,913.74 : 1,985,705.26 = 785,540.78 : x
  2. Step 2: Convert to fraction form
    1,438,913.74/1,985,705.26 = 785,540.78/x
  3. Step 3: Cross multiply
    1,438,913.74x = 1,985,705.26 × 785,540.78
  4. Step 4: Simplify right side
    1,438,913.74x = 1,559,852,461,790.91
  5. Step 5: Solve for x
    x = 1,559,852,461,790.91/1,438,913.74
  6. Step 6: Final answer
    x = 1,084,048.63

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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.