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Finding the Fourth Proportional to 528,093.40, 792,140.10 and 490,768.60

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Solution

The fourth proportional to 528,093.40, 792,140.10 and 490,768.60 is: 736,152.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,093.40 : 792,140.10 = 490,768.60 : x
  2. Step 2: Convert to fraction form
    528,093.40/792,140.10 = 490,768.60/x
  3. Step 3: Cross multiply
    528,093.40x = 792,140.10 × 490,768.60
  4. Step 4: Simplify right side
    528,093.40x = 388,757,487,880.86
  5. Step 5: Solve for x
    x = 388,757,487,880.86/528,093.40
  6. Step 6: Final answer
    x = 736,152.90

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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.