Home / 960,128.96-1,439,182.56-320,261.36

Finding the Fourth Proportional to 960,128.96, 1,439,182.56 and 320,261.36

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Solution

The fourth proportional to 960,128.96, 1,439,182.56 and 320,261.36 is: 480,054.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    960,128.96 : 1,439,182.56 = 320,261.36 : x
  2. Step 2: Convert to fraction form
    960,128.96/1,439,182.56 = 320,261.36/x
  3. Step 3: Cross multiply
    960,128.96x = 1,439,182.56 × 320,261.36
  4. Step 4: Simplify right side
    960,128.96x = 460,914,563,953.88
  5. Step 5: Solve for x
    x = 460,914,563,953.88/960,128.96
  6. Step 6: Final answer
    x = 480,054.85

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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.