Home / 818,616.37-1,228,090.64-257,520.37

Finding the Fourth Proportional to 818,616.37, 1,228,090.64 and 257,520.37

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Solution

The fourth proportional to 818,616.37, 1,228,090.64 and 257,520.37 is: 386,332.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,616.37 : 1,228,090.64 = 257,520.37 : x
  2. Step 2: Convert to fraction form
    818,616.37/1,228,090.64 = 257,520.37/x
  3. Step 3: Cross multiply
    818,616.37x = 1,228,090.64 × 257,520.37
  4. Step 4: Simplify right side
    818,616.37x = 316,258,356,006.34
  5. Step 5: Solve for x
    x = 316,258,356,006.34/818,616.37
  6. Step 6: Final answer
    x = 386,332.80

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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.