Home / 513,166.10-767,675.55-443,815.70

Finding the Fourth Proportional to 513,166.10, 767,675.55 and 443,815.70

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Solution

The fourth proportional to 513,166.10, 767,675.55 and 443,815.70 is: 663,930.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,166.10 : 767,675.55 = 443,815.70 : x
  2. Step 2: Convert to fraction form
    513,166.10/767,675.55 = 443,815.70/x
  3. Step 3: Cross multiply
    513,166.10x = 767,675.55 × 443,815.70
  4. Step 4: Simplify right side
    513,166.10x = 340,706,461,596.14
  5. Step 5: Solve for x
    x = 340,706,461,596.14/513,166.10
  6. Step 6: Final answer
    x = 663,930.18

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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.