Home / 1,077,908.80-1,616,863.20-319,777.60

Finding the Fourth Proportional to 1,077,908.80, 1,616,863.20 and 319,777.60

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Solution

The fourth proportional to 1,077,908.80, 1,616,863.20 and 319,777.60 is: 479,666.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,077,908.80 : 1,616,863.20 = 319,777.60 : x
  2. Step 2: Convert to fraction form
    1,077,908.80/1,616,863.20 = 319,777.60/x
  3. Step 3: Cross multiply
    1,077,908.80x = 1,616,863.20 × 319,777.60
  4. Step 4: Simplify right side
    1,077,908.80x = 517,036,633,624.32
  5. Step 5: Solve for x
    x = 517,036,633,624.32/1,077,908.80
  6. Step 6: Final answer
    x = 479,666.40

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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.