Home / 1,030,788-1,422,642.96-628,613.28

Finding the Fourth Proportional to 1,030,788, 1,422,642.96 and 628,613.28

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Solution

The fourth proportional to 1,030,788, 1,422,642.96 and 628,613.28 is: 867,581.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,030,788 : 1,422,642.96 = 628,613.28 : x
  2. Step 2: Convert to fraction form
    1,030,788/1,422,642.96 = 628,613.28/x
  3. Step 3: Cross multiply
    1,030,788x = 1,422,642.96 × 628,613.28
  4. Step 4: Simplify right side
    1,030,788x = 894,292,257,354.51
  5. Step 5: Solve for x
    x = 894,292,257,354.51/1,030,788
  6. Step 6: Final answer
    x = 867,581.17

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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.