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Finding the Fourth Proportional to 525,874.96, 788,812.44 and 480,255.76

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Solution

The fourth proportional to 525,874.96, 788,812.44 and 480,255.76 is: 720,383.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,874.96 : 788,812.44 = 480,255.76 : x
  2. Step 2: Convert to fraction form
    525,874.96/788,812.44 = 480,255.76/x
  3. Step 3: Cross multiply
    525,874.96x = 788,812.44 × 480,255.76
  4. Step 4: Simplify right side
    525,874.96x = 378,831,717,869.65
  5. Step 5: Solve for x
    x = 378,831,717,869.65/525,874.96
  6. Step 6: Final answer
    x = 720,383.64

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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.