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Finding the Fourth Proportional to 535,500.85, 804,563.48 and 402,640.60

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Solution

The fourth proportional to 535,500.85, 804,563.48 and 402,640.60 is: 604,947.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,500.85 : 804,563.48 = 402,640.60 : x
  2. Step 2: Convert to fraction form
    535,500.85/804,563.48 = 402,640.60/x
  3. Step 3: Cross multiply
    535,500.85x = 804,563.48 × 402,640.60
  4. Step 4: Simplify right side
    535,500.85x = 323,949,922,325.29
  5. Step 5: Solve for x
    x = 323,949,922,325.29/535,500.85
  6. Step 6: Final answer
    x = 604,947.54

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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.