Home / 902,479.14-1,245,455.73-515,357.64

Finding the Fourth Proportional to 902,479.14, 1,245,455.73 and 515,357.64

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Solution

The fourth proportional to 902,479.14, 1,245,455.73 and 515,357.64 is: 711,213.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    902,479.14 : 1,245,455.73 = 515,357.64 : x
  2. Step 2: Convert to fraction form
    902,479.14/1,245,455.73 = 515,357.64/x
  3. Step 3: Cross multiply
    902,479.14x = 1,245,455.73 × 515,357.64
  4. Step 4: Simplify right side
    902,479.14x = 641,855,125,737.28
  5. Step 5: Solve for x
    x = 641,855,125,737.28/902,479.14
  6. Step 6: Final answer
    x = 711,213.25

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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.