Home / 946,108-1,305,629.04-644,828.32

Finding the Fourth Proportional to 946,108, 1,305,629.04 and 644,828.32

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Solution

The fourth proportional to 946,108, 1,305,629.04 and 644,828.32 is: 889,863.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    946,108 : 1,305,629.04 = 644,828.32 : x
  2. Step 2: Convert to fraction form
    946,108/1,305,629.04 = 644,828.32/x
  3. Step 3: Cross multiply
    946,108x = 1,305,629.04 × 644,828.32
  4. Step 4: Simplify right side
    946,108x = 841,906,580,406.41
  5. Step 5: Solve for x
    x = 841,906,580,406.41/946,108
  6. Step 6: Final answer
    x = 889,863.08

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1.5x scale

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.