Home / 1,118,030.22-1,542,919.28-628,085.70

Finding the Fourth Proportional to 1,118,030.22, 1,542,919.28 and 628,085.70

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Solution

The fourth proportional to 1,118,030.22, 1,542,919.28 and 628,085.70 is: 866,779.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,118,030.22 : 1,542,919.28 = 628,085.70 : x
  2. Step 2: Convert to fraction form
    1,118,030.22/1,542,919.28 = 628,085.70/x
  3. Step 3: Cross multiply
    1,118,030.22x = 1,542,919.28 × 628,085.70
  4. Step 4: Simplify right side
    1,118,030.22x = 969,085,532,881.87
  5. Step 5: Solve for x
    x = 969,085,532,881.87/1,118,030.22
  6. Step 6: Final answer
    x = 866,779.37

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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.