Home / 1,076,056.80-1,615,640.40-811,672.80

Finding the Fourth Proportional to 1,076,056.80, 1,615,640.40 and 811,672.80

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Solution

The fourth proportional to 1,076,056.80, 1,615,640.40 and 811,672.80 is: 1,218,682.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,076,056.80 : 1,615,640.40 = 811,672.80 : x
  2. Step 2: Convert to fraction form
    1,076,056.80/1,615,640.40 = 811,672.80/x
  3. Step 3: Cross multiply
    1,076,056.80x = 1,615,640.40 × 811,672.80
  4. Step 4: Simplify right side
    1,076,056.80x = 1,311,371,367,261.12
  5. Step 5: Solve for x
    x = 1,311,371,367,261.12/1,076,056.80
  6. Step 6: Final answer
    x = 1,218,682.29

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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.