Home / 808,946.20-1,213,438.08-209,930.98

Finding the Fourth Proportional to 808,946.20, 1,213,438.08 and 209,930.98

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Solution

The fourth proportional to 808,946.20, 1,213,438.08 and 209,930.98 is: 314,901.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,946.20 : 1,213,438.08 = 209,930.98 : x
  2. Step 2: Convert to fraction form
    808,946.20/1,213,438.08 = 209,930.98/x
  3. Step 3: Cross multiply
    808,946.20x = 1,213,438.08 × 209,930.98
  4. Step 4: Simplify right side
    808,946.20x = 254,738,245,303.72
  5. Step 5: Solve for x
    x = 254,738,245,303.72/808,946.20
  6. Step 6: Final answer
    x = 314,901.34

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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.