Home / 845,258.40-1,267,965.78-305,649.36

Finding the Fourth Proportional to 845,258.40, 1,267,965.78 and 305,649.36

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Solution

The fourth proportional to 845,258.40, 1,267,965.78 and 305,649.36 is: 458,502.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    845,258.40 : 1,267,965.78 = 305,649.36 : x
  2. Step 2: Convert to fraction form
    845,258.40/1,267,965.78 = 305,649.36/x
  3. Step 3: Cross multiply
    845,258.40x = 1,267,965.78 × 305,649.36
  4. Step 4: Simplify right side
    845,258.40x = 387,552,929,158.90
  5. Step 5: Solve for x
    x = 387,552,929,158.90/845,258.40
  6. Step 6: Final answer
    x = 458,502.31

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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.