Home / 571,965.96-789,350.40-330,258.72

Finding the Fourth Proportional to 571,965.96, 789,350.40 and 330,258.72

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Solution

The fourth proportional to 571,965.96, 789,350.40 and 330,258.72 is: 455,778.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,965.96 : 789,350.40 = 330,258.72 : x
  2. Step 2: Convert to fraction form
    571,965.96/789,350.40 = 330,258.72/x
  3. Step 3: Cross multiply
    571,965.96x = 789,350.40 × 330,258.72
  4. Step 4: Simplify right side
    571,965.96x = 260,689,852,735.49
  5. Step 5: Solve for x
    x = 260,689,852,735.49/571,965.96
  6. Step 6: Final answer
    x = 455,778.61

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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.