Home / 856,553.80-1,284,830.70-823,894.60

Finding the Fourth Proportional to 856,553.80, 1,284,830.70 and 823,894.60

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Solution

The fourth proportional to 856,553.80, 1,284,830.70 and 823,894.60 is: 1,235,841.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,553.80 : 1,284,830.70 = 823,894.60 : x
  2. Step 2: Convert to fraction form
    856,553.80/1,284,830.70 = 823,894.60/x
  3. Step 3: Cross multiply
    856,553.80x = 1,284,830.70 × 823,894.60
  4. Step 4: Simplify right side
    856,553.80x = 1,058,565,075,644.22
  5. Step 5: Solve for x
    x = 1,058,565,075,644.22/856,553.80
  6. Step 6: Final answer
    x = 1,235,841.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.