Home / 743,839.01-1,026,458.47-421,552.97

Finding the Fourth Proportional to 743,839.01, 1,026,458.47 and 421,552.97

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Solution

The fourth proportional to 743,839.01, 1,026,458.47 and 421,552.97 is: 581,720.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,839.01 : 1,026,458.47 = 421,552.97 : x
  2. Step 2: Convert to fraction form
    743,839.01/1,026,458.47 = 421,552.97/x
  3. Step 3: Cross multiply
    743,839.01x = 1,026,458.47 × 421,552.97
  4. Step 4: Simplify right side
    743,839.01x = 432,706,616,610.16
  5. Step 5: Solve for x
    x = 432,706,616,610.16/743,839.01
  6. Step 6: Final answer
    x = 581,720.79

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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.