Home / 707,668.78-976,573.27-401,742.62

Finding the Fourth Proportional to 707,668.78, 976,573.27 and 401,742.62

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Solution

The fourth proportional to 707,668.78, 976,573.27 and 401,742.62 is: 554,399.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,668.78 : 976,573.27 = 401,742.62 : x
  2. Step 2: Convert to fraction form
    707,668.78/976,573.27 = 401,742.62/x
  3. Step 3: Cross multiply
    707,668.78x = 976,573.27 × 401,742.62
  4. Step 4: Simplify right side
    707,668.78x = 392,331,104,111.77
  5. Step 5: Solve for x
    x = 392,331,104,111.77/707,668.78
  6. Step 6: Final answer
    x = 554,399.34

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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.