Home / 773,085.76-1,066,822.19-428,918.03

Finding the Fourth Proportional to 773,085.76, 1,066,822.19 and 428,918.03

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Solution

The fourth proportional to 773,085.76, 1,066,822.19 and 428,918.03 is: 591,886.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    773,085.76 : 1,066,822.19 = 428,918.03 : x
  2. Step 2: Convert to fraction form
    773,085.76/1,066,822.19 = 428,918.03/x
  3. Step 3: Cross multiply
    773,085.76x = 1,066,822.19 × 428,918.03
  4. Step 4: Simplify right side
    773,085.76x = 457,579,264,616.39
  5. Step 5: Solve for x
    x = 457,579,264,616.39/773,085.76
  6. Step 6: Final answer
    x = 591,886.81

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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.