Home / 1,030,790-1,422,645.72-628,615.28

Finding the Fourth Proportional to 1,030,790, 1,422,645.72 and 628,615.28

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Solution

The fourth proportional to 1,030,790, 1,422,645.72 and 628,615.28 is: 867,583.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,030,790 : 1,422,645.72 = 628,615.28 : x
  2. Step 2: Convert to fraction form
    1,030,790/1,422,645.72 = 628,615.28/x
  3. Step 3: Cross multiply
    1,030,790x = 1,422,645.72 × 628,615.28
  4. Step 4: Simplify right side
    1,030,790x = 894,296,837,618.60
  5. Step 5: Solve for x
    x = 894,296,837,618.60/1,030,790
  6. Step 6: Final answer
    x = 867,583.93

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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.