Home / 1,011,346.70-1,515,999.45-505,129.10

Finding the Fourth Proportional to 1,011,346.70, 1,515,999.45 and 505,129.10

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Solution

The fourth proportional to 1,011,346.70, 1,515,999.45 and 505,129.10 is: 757,183.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,011,346.70 : 1,515,999.45 = 505,129.10 : x
  2. Step 2: Convert to fraction form
    1,011,346.70/1,515,999.45 = 505,129.10/x
  3. Step 3: Cross multiply
    1,011,346.70x = 1,515,999.45 × 505,129.10
  4. Step 4: Simplify right side
    1,011,346.70x = 765,775,437,779.00
  5. Step 5: Solve for x
    x = 765,775,437,779.00/1,011,346.70
  6. Step 6: Final answer
    x = 757,183.90

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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.