Home / 1,119,784.20-1,679,676.30-665,106.90

Finding the Fourth Proportional to 1,119,784.20, 1,679,676.30 and 665,106.90

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Solution

The fourth proportional to 1,119,784.20, 1,679,676.30 and 665,106.90 is: 997,660.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,784.20 : 1,679,676.30 = 665,106.90 : x
  2. Step 2: Convert to fraction form
    1,119,784.20/1,679,676.30 = 665,106.90/x
  3. Step 3: Cross multiply
    1,119,784.20x = 1,679,676.30 × 665,106.90
  4. Step 4: Simplify right side
    1,119,784.20x = 1,117,164,296,896.47
  5. Step 5: Solve for x
    x = 1,117,164,296,896.47/1,119,784.20
  6. Step 6: Final answer
    x = 997,660.35

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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.