Home / 571,945.92-789,353.60-330,287.36

Finding the Fourth Proportional to 571,945.92, 789,353.60 and 330,287.36

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Solution

The fourth proportional to 571,945.92, 789,353.60 and 330,287.36 is: 455,835.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,945.92 : 789,353.60 = 330,287.36 : x
  2. Step 2: Convert to fraction form
    571,945.92/789,353.60 = 330,287.36/x
  3. Step 3: Cross multiply
    571,945.92x = 789,353.60 × 330,287.36
  4. Step 4: Simplify right side
    571,945.92x = 260,713,516,650.50
  5. Step 5: Solve for x
    x = 260,713,516,650.50/571,945.92
  6. Step 6: Final answer
    x = 455,835.96

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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.