Home / 1,125,828.60-1,689,971.70-628,164.60

Finding the Fourth Proportional to 1,125,828.60, 1,689,971.70 and 628,164.60

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Solution

The fourth proportional to 1,125,828.60, 1,689,971.70 and 628,164.60 is: 942,932.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,125,828.60 : 1,689,971.70 = 628,164.60 : x
  2. Step 2: Convert to fraction form
    1,125,828.60/1,689,971.70 = 628,164.60/x
  3. Step 3: Cross multiply
    1,125,828.60x = 1,689,971.70 × 628,164.60
  4. Step 4: Simplify right side
    1,125,828.60x = 1,061,580,396,941.82
  5. Step 5: Solve for x
    x = 1,061,580,396,941.82/1,125,828.60
  6. Step 6: Final answer
    x = 942,932.52

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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.