Home / 1,159,337.80-1,738,196.70-685,779.40

Finding the Fourth Proportional to 1,159,337.80, 1,738,196.70 and 685,779.40

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Solution

The fourth proportional to 1,159,337.80, 1,738,196.70 and 685,779.40 is: 1,028,189.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,159,337.80 : 1,738,196.70 = 685,779.40 : x
  2. Step 2: Convert to fraction form
    1,159,337.80/1,738,196.70 = 685,779.40/x
  3. Step 3: Cross multiply
    1,159,337.80x = 1,738,196.70 × 685,779.40
  4. Step 4: Simplify right side
    1,159,337.80x = 1,192,019,490,007.98
  5. Step 5: Solve for x
    x = 1,192,019,490,007.98/1,159,337.80
  6. Step 6: Final answer
    x = 1,028,189.96

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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.