Home / 385,412.48-577,975.20-132,622.40

Finding the Fourth Proportional to 385,412.48, 577,975.20 and 132,622.40

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Solution

The fourth proportional to 385,412.48, 577,975.20 and 132,622.40 is: 198,884.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,412.48 : 577,975.20 = 132,622.40 : x
  2. Step 2: Convert to fraction form
    385,412.48/577,975.20 = 132,622.40/x
  3. Step 3: Cross multiply
    385,412.48x = 577,975.20 × 132,622.40
  4. Step 4: Simplify right side
    385,412.48x = 76,652,458,164.48
  5. Step 5: Solve for x
    x = 76,652,458,164.48/385,412.48
  6. Step 6: Final answer
    x = 198,884.21

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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.