Home / 743,598.70-1,026,163.48-421,370.38

Finding the Fourth Proportional to 743,598.70, 1,026,163.48 and 421,370.38

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Solution

The fourth proportional to 743,598.70, 1,026,163.48 and 421,370.38 is: 581,489.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,598.70 : 1,026,163.48 = 421,370.38 : x
  2. Step 2: Convert to fraction form
    743,598.70/1,026,163.48 = 421,370.38/x
  3. Step 3: Cross multiply
    743,598.70x = 1,026,163.48 × 421,370.38
  4. Step 4: Simplify right side
    743,598.70x = 432,394,895,509.72
  5. Step 5: Solve for x
    x = 432,394,895,509.72/743,598.70
  6. Step 6: Final answer
    x = 581,489.58

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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.