Home / 763,511.96-1,145,078.70-258,061.73

Finding the Fourth Proportional to 763,511.96, 1,145,078.70 and 258,061.73

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Solution

The fourth proportional to 763,511.96, 1,145,078.70 and 258,061.73 is: 387,028.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,511.96 : 1,145,078.70 = 258,061.73 : x
  2. Step 2: Convert to fraction form
    763,511.96/1,145,078.70 = 258,061.73/x
  3. Step 3: Cross multiply
    763,511.96x = 1,145,078.70 × 258,061.73
  4. Step 4: Simplify right side
    763,511.96x = 295,500,984,582.76
  5. Step 5: Solve for x
    x = 295,500,984,582.76/763,511.96
  6. Step 6: Final answer
    x = 387,028.63

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Double scale
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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.