Home / 990,760.32-1,485,671.92-383,832.88

Finding the Fourth Proportional to 990,760.32, 1,485,671.92 and 383,832.88

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Solution

The fourth proportional to 990,760.32, 1,485,671.92 and 383,832.88 is: 575,567.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,760.32 : 1,485,671.92 = 383,832.88 : x
  2. Step 2: Convert to fraction form
    990,760.32/1,485,671.92 = 383,832.88/x
  3. Step 3: Cross multiply
    990,760.32x = 1,485,671.92 × 383,832.88
  4. Step 4: Simplify right side
    990,760.32x = 570,249,731,788.73
  5. Step 5: Solve for x
    x = 570,249,731,788.73/990,760.32
  6. Step 6: Final answer
    x = 575,567.79

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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.