Home / 549,209.48-822,327.42-388,625.36

Finding the Fourth Proportional to 549,209.48, 822,327.42 and 388,625.36

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Solution

The fourth proportional to 549,209.48, 822,327.42 and 388,625.36 is: 581,885.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,209.48 : 822,327.42 = 388,625.36 : x
  2. Step 2: Convert to fraction form
    549,209.48/822,327.42 = 388,625.36/x
  3. Step 3: Cross multiply
    549,209.48x = 822,327.42 × 388,625.36
  4. Step 4: Simplify right side
    549,209.48x = 319,577,289,635.37
  5. Step 5: Solve for x
    x = 319,577,289,635.37/549,209.48
  6. Step 6: Final answer
    x = 581,885.97

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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.