Home / 1,129,573.60-1,694,360.40-972,109.60

Finding the Fourth Proportional to 1,129,573.60, 1,694,360.40 and 972,109.60

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Solution

The fourth proportional to 1,129,573.60, 1,694,360.40 and 972,109.60 is: 1,458,164.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,129,573.60 : 1,694,360.40 = 972,109.60 : x
  2. Step 2: Convert to fraction form
    1,129,573.60/1,694,360.40 = 972,109.60/x
  3. Step 3: Cross multiply
    1,129,573.60x = 1,694,360.40 × 972,109.60
  4. Step 4: Simplify right side
    1,129,573.60x = 1,647,104,010,699.84
  5. Step 5: Solve for x
    x = 1,647,104,010,699.84/1,129,573.60
  6. Step 6: Final answer
    x = 1,458,164.40

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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.