Home / 576,828.12-796,038.85-318,721.69

Finding the Fourth Proportional to 576,828.12, 796,038.85 and 318,721.69

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Solution

The fourth proportional to 576,828.12, 796,038.85 and 318,721.69 is: 439,844.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,828.12 : 796,038.85 = 318,721.69 : x
  2. Step 2: Convert to fraction form
    576,828.12/796,038.85 = 318,721.69/x
  3. Step 3: Cross multiply
    576,828.12x = 796,038.85 × 318,721.69
  4. Step 4: Simplify right side
    576,828.12x = 253,714,847,577.66
  5. Step 5: Solve for x
    x = 253,714,847,577.66/576,828.12
  6. Step 6: Final answer
    x = 439,844.80

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1.5x scale

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.