Home / 721,291.54-1,082,035.74-300,469

Finding the Fourth Proportional to 721,291.54, 1,082,035.74 and 300,469

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Solution

The fourth proportional to 721,291.54, 1,082,035.74 and 300,469 is: 450,744.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,291.54 : 1,082,035.74 = 300,469 : x
  2. Step 2: Convert to fraction form
    721,291.54/1,082,035.74 = 300,469/x
  3. Step 3: Cross multiply
    721,291.54x = 1,082,035.74 × 300,469
  4. Step 4: Simplify right side
    721,291.54x = 325,118,196,762.06
  5. Step 5: Solve for x
    x = 325,118,196,762.06/721,291.54
  6. Step 6: Final answer
    x = 450,744.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.