Home / 925,612.08-1,388,565.96-285,765.36

Finding the Fourth Proportional to 925,612.08, 1,388,565.96 and 285,765.36

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Solution

The fourth proportional to 925,612.08, 1,388,565.96 and 285,765.36 is: 428,693.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    925,612.08 : 1,388,565.96 = 285,765.36 : x
  2. Step 2: Convert to fraction form
    925,612.08/1,388,565.96 = 285,765.36/x
  3. Step 3: Cross multiply
    925,612.08x = 1,388,565.96 × 285,765.36
  4. Step 4: Simplify right side
    925,612.08x = 396,804,051,443.15
  5. Step 5: Solve for x
    x = 396,804,051,443.15/925,612.08
  6. Step 6: Final answer
    x = 428,693.68

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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.