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Finding the Fourth Proportional to 505,860.07, 759,315.66 and 338,549.56

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Solution

The fourth proportional to 505,860.07, 759,315.66 and 338,549.56 is: 508,176.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,860.07 : 759,315.66 = 338,549.56 : x
  2. Step 2: Convert to fraction form
    505,860.07/759,315.66 = 338,549.56/x
  3. Step 3: Cross multiply
    505,860.07x = 759,315.66 × 338,549.56
  4. Step 4: Simplify right side
    505,860.07x = 257,065,982,594.11
  5. Step 5: Solve for x
    x = 257,065,982,594.11/505,860.07
  6. Step 6: Final answer
    x = 508,176.07

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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.