Home / 820,006.68-1,131,637.32-475,816.62

Finding the Fourth Proportional to 820,006.68, 1,131,637.32 and 475,816.62

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Solution

The fourth proportional to 820,006.68, 1,131,637.32 and 475,816.62 is: 656,643.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,006.68 : 1,131,637.32 = 475,816.62 : x
  2. Step 2: Convert to fraction form
    820,006.68/1,131,637.32 = 475,816.62/x
  3. Step 3: Cross multiply
    820,006.68x = 1,131,637.32 × 475,816.62
  4. Step 4: Simplify right side
    820,006.68x = 538,451,844,668.26
  5. Step 5: Solve for x
    x = 538,451,844,668.26/820,006.68
  6. Step 6: Final answer
    x = 656,643.24

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Double scale
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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.