Home / 627,132.29-865,458.65-340,668.77

Finding the Fourth Proportional to 627,132.29, 865,458.65 and 340,668.77

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Solution

The fourth proportional to 627,132.29, 865,458.65 and 340,668.77 is: 470,131.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,132.29 : 865,458.65 = 340,668.77 : x
  2. Step 2: Convert to fraction form
    627,132.29/865,458.65 = 340,668.77/x
  3. Step 3: Cross multiply
    627,132.29x = 865,458.65 × 340,668.77
  4. Step 4: Simplify right side
    627,132.29x = 294,834,733,781.36
  5. Step 5: Solve for x
    x = 294,834,733,781.36/627,132.29
  6. Step 6: Final answer
    x = 470,131.64

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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.