Home / 772,536.29-1,066,102.38-428,396.45

Finding the Fourth Proportional to 772,536.29, 1,066,102.38 and 428,396.45

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Solution

The fourth proportional to 772,536.29, 1,066,102.38 and 428,396.45 is: 591,188.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,536.29 : 1,066,102.38 = 428,396.45 : x
  2. Step 2: Convert to fraction form
    772,536.29/1,066,102.38 = 428,396.45/x
  3. Step 3: Cross multiply
    772,536.29x = 1,066,102.38 × 428,396.45
  4. Step 4: Simplify right side
    772,536.29x = 456,714,469,598.04
  5. Step 5: Solve for x
    x = 456,714,469,598.04/772,536.29
  6. Step 6: Final answer
    x = 591,188.37

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Double scale
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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.