Home / 1,030,785-1,422,638.82-628,610.28

Finding the Fourth Proportional to 1,030,785, 1,422,638.82 and 628,610.28

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Solution

The fourth proportional to 1,030,785, 1,422,638.82 and 628,610.28 is: 867,577.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,030,785 : 1,422,638.82 = 628,610.28 : x
  2. Step 2: Convert to fraction form
    1,030,785/1,422,638.82 = 628,610.28/x
  3. Step 3: Cross multiply
    1,030,785x = 1,422,638.82 × 628,610.28
  4. Step 4: Simplify right side
    1,030,785x = 894,285,386,979.07
  5. Step 5: Solve for x
    x = 894,285,386,979.07/1,030,785
  6. Step 6: Final answer
    x = 867,577.03

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1.5x scale

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.