Home / 576,826.93-796,037.21-318,720.50

Finding the Fourth Proportional to 576,826.93, 796,037.21 and 318,720.50

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Solution

The fourth proportional to 576,826.93, 796,037.21 and 318,720.50 is: 439,843.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,826.93 : 796,037.21 = 318,720.50 : x
  2. Step 2: Convert to fraction form
    576,826.93/796,037.21 = 318,720.50/x
  3. Step 3: Cross multiply
    576,826.93x = 796,037.21 × 318,720.50
  4. Step 4: Simplify right side
    576,826.93x = 253,713,381,271.67
  5. Step 5: Solve for x
    x = 253,713,381,271.67/576,826.93
  6. Step 6: Final answer
    x = 439,843.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.