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Finding the Fourth Proportional to 528,090.80, 792,136.20 and 482,471.60

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Solution

The fourth proportional to 528,090.80, 792,136.20 and 482,471.60 is: 723,707.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,090.80 : 792,136.20 = 482,471.60 : x
  2. Step 2: Convert to fraction form
    528,090.80/792,136.20 = 482,471.60/x
  3. Step 3: Cross multiply
    528,090.80x = 792,136.20 × 482,471.60
  4. Step 4: Simplify right side
    528,090.80x = 382,183,219,831.92
  5. Step 5: Solve for x
    x = 382,183,219,831.92/528,090.80
  6. Step 6: Final answer
    x = 723,707.40

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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.