Home / 743,391.46-1,025,901.25-421,101.47

Finding the Fourth Proportional to 743,391.46, 1,025,901.25 and 421,101.47

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Solution

The fourth proportional to 743,391.46, 1,025,901.25 and 421,101.47 is: 581,131.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,391.46 : 1,025,901.25 = 421,101.47 : x
  2. Step 2: Convert to fraction form
    743,391.46/1,025,901.25 = 421,101.47/x
  3. Step 3: Cross multiply
    743,391.46x = 1,025,901.25 × 421,101.47
  4. Step 4: Simplify right side
    743,391.46x = 432,008,524,449.84
  5. Step 5: Solve for x
    x = 432,008,524,449.84/743,391.46
  6. Step 6: Final answer
    x = 581,131.94

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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.