Home / 721,036.14-1,081,670.85-300,354.54

Finding the Fourth Proportional to 721,036.14, 1,081,670.85 and 300,354.54

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Solution

The fourth proportional to 721,036.14, 1,081,670.85 and 300,354.54 is: 450,580.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,036.14 : 1,081,670.85 = 300,354.54 : x
  2. Step 2: Convert to fraction form
    721,036.14/1,081,670.85 = 300,354.54/x
  3. Step 3: Cross multiply
    721,036.14x = 1,081,670.85 × 300,354.54
  4. Step 4: Simplify right side
    721,036.14x = 324,884,750,583.16
  5. Step 5: Solve for x
    x = 324,884,750,583.16/721,036.14
  6. Step 6: Final answer
    x = 450,580.40

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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.