Home / 1,358,143.15-1,874,127.84-785,220.25

Finding the Fourth Proportional to 1,358,143.15, 1,874,127.84 and 785,220.25

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Solution

The fourth proportional to 1,358,143.15, 1,874,127.84 and 785,220.25 is: 1,083,540.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,358,143.15 : 1,874,127.84 = 785,220.25 : x
  2. Step 2: Convert to fraction form
    1,358,143.15/1,874,127.84 = 785,220.25/x
  3. Step 3: Cross multiply
    1,358,143.15x = 1,874,127.84 × 785,220.25
  4. Step 4: Simplify right side
    1,358,143.15x = 1,471,603,131,056.76
  5. Step 5: Solve for x
    x = 1,471,603,131,056.76/1,358,143.15
  6. Step 6: Final answer
    x = 1,083,540.52

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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.