Home / 818,281.13-1,227,465.43-257,359.37

Finding the Fourth Proportional to 818,281.13, 1,227,465.43 and 257,359.37

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Solution

The fourth proportional to 818,281.13, 1,227,465.43 and 257,359.37 is: 386,052.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,281.13 : 1,227,465.43 = 257,359.37 : x
  2. Step 2: Convert to fraction form
    818,281.13/1,227,465.43 = 257,359.37/x
  3. Step 3: Cross multiply
    818,281.13x = 1,227,465.43 × 257,359.37
  4. Step 4: Simplify right side
    818,281.13x = 315,899,722,980.85
  5. Step 5: Solve for x
    x = 315,899,722,980.85/818,281.13
  6. Step 6: Final answer
    x = 386,052.80

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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.