Home / 513,802.10-770,837.55-198,269.30

Finding the Fourth Proportional to 513,802.10, 770,837.55 and 198,269.30

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Solution

The fourth proportional to 513,802.10, 770,837.55 and 198,269.30 is: 297,455.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,802.10 : 770,837.55 = 198,269.30 : x
  2. Step 2: Convert to fraction form
    513,802.10/770,837.55 = 198,269.30/x
  3. Step 3: Cross multiply
    513,802.10x = 770,837.55 × 198,269.30
  4. Step 4: Simplify right side
    513,802.10x = 152,833,421,452.22
  5. Step 5: Solve for x
    x = 152,833,421,452.22/513,802.10
  6. Step 6: Final answer
    x = 297,455.81

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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.