Home / 1,384,138.10-2,076,207.15-905,841.20

Finding the Fourth Proportional to 1,384,138.10, 2,076,207.15 and 905,841.20

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Solution

The fourth proportional to 1,384,138.10, 2,076,207.15 and 905,841.20 is: 1,358,761.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,384,138.10 : 2,076,207.15 = 905,841.20 : x
  2. Step 2: Convert to fraction form
    1,384,138.10/2,076,207.15 = 905,841.20/x
  3. Step 3: Cross multiply
    1,384,138.10x = 2,076,207.15 × 905,841.20
  4. Step 4: Simplify right side
    1,384,138.10x = 1,880,713,976,204.58
  5. Step 5: Solve for x
    x = 1,880,713,976,204.58/1,384,138.10
  6. Step 6: Final answer
    x = 1,358,761.80

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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.