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Finding the Fourth Proportional to 576,688.58, 795,814.80 and 318,559.96

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Solution

The fourth proportional to 576,688.58, 795,814.80 and 318,559.96 is: 439,604.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,688.58 : 795,814.80 = 318,559.96 : x
  2. Step 2: Convert to fraction form
    576,688.58/795,814.80 = 318,559.96/x
  3. Step 3: Cross multiply
    576,688.58x = 795,814.80 × 318,559.96
  4. Step 4: Simplify right side
    576,688.58x = 253,514,730,855.41
  5. Step 5: Solve for x
    x = 253,514,730,855.41/576,688.58
  6. Step 6: Final answer
    x = 439,604.22

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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.