Home / 1,000,685.43-1,500,859.09-280,861.94

Finding the Fourth Proportional to 1,000,685.43, 1,500,859.09 and 280,861.94

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Solution

The fourth proportional to 1,000,685.43, 1,500,859.09 and 280,861.94 is: 421,245.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,000,685.43 : 1,500,859.09 = 280,861.94 : x
  2. Step 2: Convert to fraction form
    1,000,685.43/1,500,859.09 = 280,861.94/x
  3. Step 3: Cross multiply
    1,000,685.43x = 1,500,859.09 × 280,861.94
  4. Step 4: Simplify right side
    1,000,685.43x = 421,534,200,712.97
  5. Step 5: Solve for x
    x = 421,534,200,712.97/1,000,685.43
  6. Step 6: Final answer
    x = 421,245.47

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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.