Home / 1,285,877.25-1,925,032.12-858,352.65

Finding the Fourth Proportional to 1,285,877.25, 1,925,032.12 and 858,352.65

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Solution

The fourth proportional to 1,285,877.25, 1,925,032.12 and 858,352.65 is: 1,285,003.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,877.25 : 1,925,032.12 = 858,352.65 : x
  2. Step 2: Convert to fraction form
    1,285,877.25/1,925,032.12 = 858,352.65/x
  3. Step 3: Cross multiply
    1,285,877.25x = 1,925,032.12 × 858,352.65
  4. Step 4: Simplify right side
    1,285,877.25x = 1,652,356,421,537.12
  5. Step 5: Solve for x
    x = 1,652,356,421,537.12/1,285,877.25
  6. Step 6: Final answer
    x = 1,285,003.23

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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.