Home / 479,192.46-661,498.14-309,509.34

Finding the Fourth Proportional to 479,192.46, 661,498.14 and 309,509.34

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Solution

The fourth proportional to 479,192.46, 661,498.14 and 309,509.34 is: 427,260.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,192.46 : 661,498.14 = 309,509.34 : x
  2. Step 2: Convert to fraction form
    479,192.46/661,498.14 = 309,509.34/x
  3. Step 3: Cross multiply
    479,192.46x = 661,498.14 × 309,509.34
  4. Step 4: Simplify right side
    479,192.46x = 204,739,852,722.63
  5. Step 5: Solve for x
    x = 204,739,852,722.63/479,192.46
  6. Step 6: Final answer
    x = 427,260.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.