Home / 513,830.12-770,810.78-198,377.24

Finding the Fourth Proportional to 513,830.12, 770,810.78 and 198,377.24

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Solution

The fourth proportional to 513,830.12, 770,810.78 and 198,377.24 is: 297,591.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,830.12 : 770,810.78 = 198,377.24 : x
  2. Step 2: Convert to fraction form
    513,830.12/770,810.78 = 198,377.24/x
  3. Step 3: Cross multiply
    513,830.12x = 770,810.78 × 198,377.24
  4. Step 4: Simplify right side
    513,830.12x = 152,911,311,740.54
  5. Step 5: Solve for x
    x = 152,911,311,740.54/513,830.12
  6. Step 6: Final answer
    x = 297,591.18

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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.