Home / 557,297.80-835,946.70-389,336.20

Finding the Fourth Proportional to 557,297.80, 835,946.70 and 389,336.20

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Solution

The fourth proportional to 557,297.80, 835,946.70 and 389,336.20 is: 584,004.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,297.80 : 835,946.70 = 389,336.20 : x
  2. Step 2: Convert to fraction form
    557,297.80/835,946.70 = 389,336.20/x
  3. Step 3: Cross multiply
    557,297.80x = 835,946.70 × 389,336.20
  4. Step 4: Simplify right side
    557,297.80x = 325,464,311,580.54
  5. Step 5: Solve for x
    x = 325,464,311,580.54/557,297.80
  6. Step 6: Final answer
    x = 584,004.30

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Similar ratio
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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.