Home / 1,631,020.32-2,250,779.52-905,840.32

Finding the Fourth Proportional to 1,631,020.32, 2,250,779.52 and 905,840.32

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Solution

The fourth proportional to 1,631,020.32, 2,250,779.52 and 905,840.32 is: 1,250,043.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,631,020.32 : 2,250,779.52 = 905,840.32 : x
  2. Step 2: Convert to fraction form
    1,631,020.32/2,250,779.52 = 905,840.32/x
  3. Step 3: Cross multiply
    1,631,020.32x = 2,250,779.52 × 905,840.32
  4. Step 4: Simplify right side
    1,631,020.32x = 2,038,846,840,646.25
  5. Step 5: Solve for x
    x = 2,038,846,840,646.25/1,631,020.32
  6. Step 6: Final answer
    x = 1,250,043.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.