Home / 385,645.20-577,884.60-326,158.80

Finding the Fourth Proportional to 385,645.20, 577,884.60 and 326,158.80

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Solution

The fourth proportional to 385,645.20, 577,884.60 and 326,158.80 is: 488,744.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,645.20 : 577,884.60 = 326,158.80 : x
  2. Step 2: Convert to fraction form
    385,645.20/577,884.60 = 326,158.80/x
  3. Step 3: Cross multiply
    385,645.20x = 577,884.60 × 326,158.80
  4. Step 4: Simplify right side
    385,645.20x = 188,482,147,674.48
  5. Step 5: Solve for x
    x = 188,482,147,674.48/385,645.20
  6. Step 6: Final answer
    x = 488,744.96

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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.