Home / 925,130.86-1,387,826.73-285,486.66

Finding the Fourth Proportional to 925,130.86, 1,387,826.73 and 285,486.66

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Solution

The fourth proportional to 925,130.86, 1,387,826.73 and 285,486.66 is: 428,270.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    925,130.86 : 1,387,826.73 = 285,486.66 : x
  2. Step 2: Convert to fraction form
    925,130.86/1,387,826.73 = 285,486.66/x
  3. Step 3: Cross multiply
    925,130.86x = 1,387,826.73 × 285,486.66
  4. Step 4: Simplify right side
    925,130.86x = 396,206,017,806.42
  5. Step 5: Solve for x
    x = 396,206,017,806.42/925,130.86
  6. Step 6: Final answer
    x = 428,270.24

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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.