Home / 853,412.32-1,280,102.64-254,779.36

Finding the Fourth Proportional to 853,412.32, 1,280,102.64 and 254,779.36

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Solution

The fourth proportional to 853,412.32, 1,280,102.64 and 254,779.36 is: 382,164.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,412.32 : 1,280,102.64 = 254,779.36 : x
  2. Step 2: Convert to fraction form
    853,412.32/1,280,102.64 = 254,779.36/x
  3. Step 3: Cross multiply
    853,412.32x = 1,280,102.64 × 254,779.36
  4. Step 4: Simplify right side
    853,412.32x = 326,143,731,353.51
  5. Step 5: Solve for x
    x = 326,143,731,353.51/853,412.32
  6. Step 6: Final answer
    x = 382,164.31

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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.