Home / 389,636.60-584,685.30-284,190.20

Finding the Fourth Proportional to 389,636.60, 584,685.30 and 284,190.20

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Solution

The fourth proportional to 389,636.60, 584,685.30 and 284,190.20 is: 426,453.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,636.60 : 584,685.30 = 284,190.20 : x
  2. Step 2: Convert to fraction form
    389,636.60/584,685.30 = 284,190.20/x
  3. Step 3: Cross multiply
    389,636.60x = 584,685.30 × 284,190.20
  4. Step 4: Simplify right side
    389,636.60x = 166,161,832,344.06
  5. Step 5: Solve for x
    x = 166,161,832,344.06/389,636.60
  6. Step 6: Final answer
    x = 426,453.35

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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.