Home / 827,647.67-1,240,801.54-258,735.87

Finding the Fourth Proportional to 827,647.67, 1,240,801.54 and 258,735.87

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Solution

The fourth proportional to 827,647.67, 1,240,801.54 and 258,735.87 is: 387,894.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,647.67 : 1,240,801.54 = 258,735.87 : x
  2. Step 2: Convert to fraction form
    827,647.67/1,240,801.54 = 258,735.87/x
  3. Step 3: Cross multiply
    827,647.67x = 1,240,801.54 × 258,735.87
  4. Step 4: Simplify right side
    827,647.67x = 321,039,865,302.40
  5. Step 5: Solve for x
    x = 321,039,865,302.40/827,647.67
  6. Step 6: Final answer
    x = 387,894.36

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1.5x scale

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.