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Finding the Fourth Proportional to 587,996.20, 881,994.30 and 455,285.80

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Solution

The fourth proportional to 587,996.20, 881,994.30 and 455,285.80 is: 682,928.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,996.20 : 881,994.30 = 455,285.80 : x
  2. Step 2: Convert to fraction form
    587,996.20/881,994.30 = 455,285.80/x
  3. Step 3: Cross multiply
    587,996.20x = 881,994.30 × 455,285.80
  4. Step 4: Simplify right side
    587,996.20x = 401,559,480,470.94
  5. Step 5: Solve for x
    x = 401,559,480,470.94/587,996.20
  6. Step 6: Final answer
    x = 682,928.70

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1.5x scale

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.