Home / 513,628.92-770,385-198,059.40

Finding the Fourth Proportional to 513,628.92, 770,385 and 198,059.40

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Solution

The fourth proportional to 513,628.92, 770,385 and 198,059.40 is: 297,066.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,628.92 : 770,385 = 198,059.40 : x
  2. Step 2: Convert to fraction form
    513,628.92/770,385 = 198,059.40/x
  3. Step 3: Cross multiply
    513,628.92x = 770,385 × 198,059.40
  4. Step 4: Simplify right side
    513,628.92x = 152,581,990,869
  5. Step 5: Solve for x
    x = 152,581,990,869/513,628.92
  6. Step 6: Final answer
    x = 297,066.59

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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.