Home / 851,673.78-1,277,460.27-319,150.26

Finding the Fourth Proportional to 851,673.78, 1,277,460.27 and 319,150.26

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Solution

The fourth proportional to 851,673.78, 1,277,460.27 and 319,150.26 is: 478,706.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,673.78 : 1,277,460.27 = 319,150.26 : x
  2. Step 2: Convert to fraction form
    851,673.78/1,277,460.27 = 319,150.26/x
  3. Step 3: Cross multiply
    851,673.78x = 1,277,460.27 × 319,150.26
  4. Step 4: Simplify right side
    851,673.78x = 407,701,777,310.17
  5. Step 5: Solve for x
    x = 407,701,777,310.17/851,673.78
  6. Step 6: Final answer
    x = 478,706.50

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Double scale
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1.5x scale

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.