Home / 1,058,644.80-1,585,342.80-678,981.60

Finding the Fourth Proportional to 1,058,644.80, 1,585,342.80 and 678,981.60

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Solution

The fourth proportional to 1,058,644.80, 1,585,342.80 and 678,981.60 is: 1,016,789.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,058,644.80 : 1,585,342.80 = 678,981.60 : x
  2. Step 2: Convert to fraction form
    1,058,644.80/1,585,342.80 = 678,981.60/x
  3. Step 3: Cross multiply
    1,058,644.80x = 1,585,342.80 × 678,981.60
  4. Step 4: Simplify right side
    1,058,644.80x = 1,076,418,590,892.48
  5. Step 5: Solve for x
    x = 1,076,418,590,892.48/1,058,644.80
  6. Step 6: Final answer
    x = 1,016,789.19

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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.