Home / 762,020.88-1,143,716.58-407,338.08

Finding the Fourth Proportional to 762,020.88, 1,143,716.58 and 407,338.08

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Solution

The fourth proportional to 762,020.88, 1,143,716.58 and 407,338.08 is: 611,373.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,020.88 : 1,143,716.58 = 407,338.08 : x
  2. Step 2: Convert to fraction form
    762,020.88/1,143,716.58 = 407,338.08/x
  3. Step 3: Cross multiply
    762,020.88x = 1,143,716.58 × 407,338.08
  4. Step 4: Simplify right side
    762,020.88x = 465,879,319,051.47
  5. Step 5: Solve for x
    x = 465,879,319,051.47/762,020.88
  6. Step 6: Final answer
    x = 611,373.43

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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.