Home / 1,077,170.45-1,615,992.60-319,071.20

Finding the Fourth Proportional to 1,077,170.45, 1,615,992.60 and 319,071.20

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Solution

The fourth proportional to 1,077,170.45, 1,615,992.60 and 319,071.20 is: 478,676.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,077,170.45 : 1,615,992.60 = 319,071.20 : x
  2. Step 2: Convert to fraction form
    1,077,170.45/1,615,992.60 = 319,071.20/x
  3. Step 3: Cross multiply
    1,077,170.45x = 1,615,992.60 × 319,071.20
  4. Step 4: Simplify right side
    1,077,170.45x = 515,616,698,073.12
  5. Step 5: Solve for x
    x = 515,616,698,073.12/1,077,170.45
  6. Step 6: Final answer
    x = 478,676.98

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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.