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Finding the Fourth Proportional to 413,680.80, 620,521.44 and 118,192.80

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Solution

The fourth proportional to 413,680.80, 620,521.44 and 118,192.80 is: 177,289.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,680.80 : 620,521.44 = 118,192.80 : x
  2. Step 2: Convert to fraction form
    413,680.80/620,521.44 = 118,192.80/x
  3. Step 3: Cross multiply
    413,680.80x = 620,521.44 × 118,192.80
  4. Step 4: Simplify right side
    413,680.80x = 73,341,166,453.63
  5. Step 5: Solve for x
    x = 73,341,166,453.63/413,680.80
  6. Step 6: Final answer
    x = 177,289.27

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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.