Home / 739,853.70-1,109,780.55-698,519.40

Finding the Fourth Proportional to 739,853.70, 1,109,780.55 and 698,519.40

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Solution

The fourth proportional to 739,853.70, 1,109,780.55 and 698,519.40 is: 1,047,779.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,853.70 : 1,109,780.55 = 698,519.40 : x
  2. Step 2: Convert to fraction form
    739,853.70/1,109,780.55 = 698,519.40/x
  3. Step 3: Cross multiply
    739,853.70x = 1,109,780.55 × 698,519.40
  4. Step 4: Simplify right side
    739,853.70x = 775,203,243,917.67
  5. Step 5: Solve for x
    x = 775,203,243,917.67/739,853.70
  6. Step 6: Final answer
    x = 1,047,779.10

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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.