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Finding the Fourth Proportional to 513,166.60, 767,676.30 and 443,816.20

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Solution

The fourth proportional to 513,166.60, 767,676.30 and 443,816.20 is: 663,930.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,166.60 : 767,676.30 = 443,816.20 : x
  2. Step 2: Convert to fraction form
    513,166.60/767,676.30 = 443,816.20/x
  3. Step 3: Cross multiply
    513,166.60x = 767,676.30 × 443,816.20
  4. Step 4: Simplify right side
    513,166.60x = 340,707,178,296.06
  5. Step 5: Solve for x
    x = 340,707,178,296.06/513,166.60
  6. Step 6: Final answer
    x = 663,930.93

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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.