Home / 660,908.20-991,341.66-211,656.04

Finding the Fourth Proportional to 660,908.20, 991,341.66 and 211,656.04

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Solution

The fourth proportional to 660,908.20, 991,341.66 and 211,656.04 is: 317,477.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,908.20 : 991,341.66 = 211,656.04 : x
  2. Step 2: Convert to fraction form
    660,908.20/991,341.66 = 211,656.04/x
  3. Step 3: Cross multiply
    660,908.20x = 991,341.66 × 211,656.04
  4. Step 4: Simplify right side
    660,908.20x = 209,823,450,042.63
  5. Step 5: Solve for x
    x = 209,823,450,042.63/660,908.20
  6. Step 6: Final answer
    x = 317,477.45

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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.