Home / 818,758.08-1,228,249.08-286,155.72

Finding the Fourth Proportional to 818,758.08, 1,228,249.08 and 286,155.72

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Solution

The fourth proportional to 818,758.08, 1,228,249.08 and 286,155.72 is: 429,272.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,758.08 : 1,228,249.08 = 286,155.72 : x
  2. Step 2: Convert to fraction form
    818,758.08/1,228,249.08 = 286,155.72/x
  3. Step 3: Cross multiply
    818,758.08x = 1,228,249.08 × 286,155.72
  4. Step 4: Simplify right side
    818,758.08x = 351,470,499,826.74
  5. Step 5: Solve for x
    x = 351,470,499,826.74/818,758.08
  6. Step 6: Final answer
    x = 429,272.71

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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.