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Finding the Fourth Proportional to 619,069.60, 930,703.92 and 494,303.68

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Solution

The fourth proportional to 619,069.60, 930,703.92 and 494,303.68 is: 743,131.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,069.60 : 930,703.92 = 494,303.68 : x
  2. Step 2: Convert to fraction form
    619,069.60/930,703.92 = 494,303.68/x
  3. Step 3: Cross multiply
    619,069.60x = 930,703.92 × 494,303.68
  4. Step 4: Simplify right side
    619,069.60x = 460,050,372,646.43
  5. Step 5: Solve for x
    x = 460,050,372,646.43/619,069.60
  6. Step 6: Final answer
    x = 743,131.91

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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.