Home / 739,902.84-1,021,086.36-449,416.32

Finding the Fourth Proportional to 739,902.84, 1,021,086.36 and 449,416.32

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Solution

The fourth proportional to 739,902.84, 1,021,086.36 and 449,416.32 is: 620,206.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,902.84 : 1,021,086.36 = 449,416.32 : x
  2. Step 2: Convert to fraction form
    739,902.84/1,021,086.36 = 449,416.32/x
  3. Step 3: Cross multiply
    739,902.84x = 1,021,086.36 × 449,416.32
  4. Step 4: Simplify right side
    739,902.84x = 458,892,874,313.40
  5. Step 5: Solve for x
    x = 458,892,874,313.40/739,902.84
  6. Step 6: Final answer
    x = 620,206.94

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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.