Home / 1,105,384.20-1,658,076.30-1,091,387.40

Finding the Fourth Proportional to 1,105,384.20, 1,658,076.30 and 1,091,387.40

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Solution

The fourth proportional to 1,105,384.20, 1,658,076.30 and 1,091,387.40 is: 1,637,081.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,105,384.20 : 1,658,076.30 = 1,091,387.40 : x
  2. Step 2: Convert to fraction form
    1,105,384.20/1,658,076.30 = 1,091,387.40/x
  3. Step 3: Cross multiply
    1,105,384.20x = 1,658,076.30 × 1,091,387.40
  4. Step 4: Simplify right side
    1,105,384.20x = 1,809,603,582,058.62
  5. Step 5: Solve for x
    x = 1,809,603,582,058.62/1,105,384.20
  6. Step 6: Final answer
    x = 1,637,081.10

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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.