Home / 1,330,016.51-1,995,305.28-431,388.46

Finding the Fourth Proportional to 1,330,016.51, 1,995,305.28 and 431,388.46

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Solution

The fourth proportional to 1,330,016.51, 1,995,305.28 and 431,388.46 is: 647,173.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330,016.51 : 1,995,305.28 = 431,388.46 : x
  2. Step 2: Convert to fraction form
    1,330,016.51/1,995,305.28 = 431,388.46/x
  3. Step 3: Cross multiply
    1,330,016.51x = 1,995,305.28 × 431,388.46
  4. Step 4: Simplify right side
    1,330,016.51x = 860,751,674,058.77
  5. Step 5: Solve for x
    x = 860,751,674,058.77/1,330,016.51
  6. Step 6: Final answer
    x = 647,173.68

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.