Home / 1,076,306.80-1,616,015.40-811,922.80

Finding the Fourth Proportional to 1,076,306.80, 1,616,015.40 and 811,922.80

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Solution

The fourth proportional to 1,076,306.80, 1,616,015.40 and 811,922.80 is: 1,219,057.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,076,306.80 : 1,616,015.40 = 811,922.80 : x
  2. Step 2: Convert to fraction form
    1,076,306.80/1,616,015.40 = 811,922.80/x
  3. Step 3: Cross multiply
    1,076,306.80x = 1,616,015.40 × 811,922.80
  4. Step 4: Simplify right side
    1,076,306.80x = 1,312,079,748,411.12
  5. Step 5: Solve for x
    x = 1,312,079,748,411.12/1,076,306.80
  6. Step 6: Final answer
    x = 1,219,057.38

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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.