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Finding the Fourth Proportional to 493,735.80, 740,603.70 and 455,244.60

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Solution

The fourth proportional to 493,735.80, 740,603.70 and 455,244.60 is: 682,866.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,735.80 : 740,603.70 = 455,244.60 : x
  2. Step 2: Convert to fraction form
    493,735.80/740,603.70 = 455,244.60/x
  3. Step 3: Cross multiply
    493,735.80x = 740,603.70 × 455,244.60
  4. Step 4: Simplify right side
    493,735.80x = 337,155,835,165.02
  5. Step 5: Solve for x
    x = 337,155,835,165.02/493,735.80
  6. Step 6: Final answer
    x = 682,866.90

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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.