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Finding the Fourth Proportional to 619,284.60, 931,026.60 and 494,518.68

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Solution

The fourth proportional to 619,284.60, 931,026.60 and 494,518.68 is: 743,454.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,284.60 : 931,026.60 = 494,518.68 : x
  2. Step 2: Convert to fraction form
    619,284.60/931,026.60 = 494,518.68/x
  3. Step 3: Cross multiply
    619,284.60x = 931,026.60 × 494,518.68
  4. Step 4: Simplify right side
    619,284.60x = 460,410,045,276.89
  5. Step 5: Solve for x
    x = 460,410,045,276.89/619,284.60
  6. Step 6: Final answer
    x = 743,454.70

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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.