Home / 486,973.51-672,010.56-272,115.34

Finding the Fourth Proportional to 486,973.51, 672,010.56 and 272,115.34

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Solution

The fourth proportional to 486,973.51, 672,010.56 and 272,115.34 is: 375,511.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,973.51 : 672,010.56 = 272,115.34 : x
  2. Step 2: Convert to fraction form
    486,973.51/672,010.56 = 272,115.34/x
  3. Step 3: Cross multiply
    486,973.51x = 672,010.56 × 272,115.34
  4. Step 4: Simplify right side
    486,973.51x = 182,864,380,657.41
  5. Step 5: Solve for x
    x = 182,864,380,657.41/486,973.51
  6. Step 6: Final answer
    x = 375,511.97

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Double scale
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Similar ratio
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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.