Home / 945,386.88-1,418,079.60-280,538.88

Finding the Fourth Proportional to 945,386.88, 1,418,079.60 and 280,538.88

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Solution

The fourth proportional to 945,386.88, 1,418,079.60 and 280,538.88 is: 420,808.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,386.88 : 1,418,079.60 = 280,538.88 : x
  2. Step 2: Convert to fraction form
    945,386.88/1,418,079.60 = 280,538.88/x
  3. Step 3: Cross multiply
    945,386.88x = 1,418,079.60 × 280,538.88
  4. Step 4: Simplify right side
    945,386.88x = 397,826,462,734.85
  5. Step 5: Solve for x
    x = 397,826,462,734.85/945,386.88
  6. Step 6: Final answer
    x = 420,808.11

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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.