Home / 808,540.80-1,210,478.40-493,612.80

Finding the Fourth Proportional to 808,540.80, 1,210,478.40 and 493,612.80

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Solution

The fourth proportional to 808,540.80, 1,210,478.40 and 493,612.80 is: 738,995.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,540.80 : 1,210,478.40 = 493,612.80 : x
  2. Step 2: Convert to fraction form
    808,540.80/1,210,478.40 = 493,612.80/x
  3. Step 3: Cross multiply
    808,540.80x = 1,210,478.40 × 493,612.80
  4. Step 4: Simplify right side
    808,540.80x = 597,507,632,363.52
  5. Step 5: Solve for x
    x = 597,507,632,363.52/808,540.80
  6. Step 6: Final answer
    x = 738,995.03

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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.