Home / 715,855.77-1,074,561.68-289,684.92

Finding the Fourth Proportional to 715,855.77, 1,074,561.68 and 289,684.92

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Solution

The fourth proportional to 715,855.77, 1,074,561.68 and 289,684.92 is: 434,842.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,855.77 : 1,074,561.68 = 289,684.92 : x
  2. Step 2: Convert to fraction form
    715,855.77/1,074,561.68 = 289,684.92/x
  3. Step 3: Cross multiply
    715,855.77x = 1,074,561.68 × 289,684.92
  4. Step 4: Simplify right side
    715,855.77x = 311,284,314,305.87
  5. Step 5: Solve for x
    x = 311,284,314,305.87/715,855.77
  6. Step 6: Final answer
    x = 434,842.22

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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.