Home / 750,679.47-1,035,940.48-406,515.56

Finding the Fourth Proportional to 750,679.47, 1,035,940.48 and 406,515.56

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Solution

The fourth proportional to 750,679.47, 1,035,940.48 and 406,515.56 is: 560,992.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    750,679.47 : 1,035,940.48 = 406,515.56 : x
  2. Step 2: Convert to fraction form
    750,679.47/1,035,940.48 = 406,515.56/x
  3. Step 3: Cross multiply
    750,679.47x = 1,035,940.48 × 406,515.56
  4. Step 4: Simplify right side
    750,679.47x = 421,125,918,157.88
  5. Step 5: Solve for x
    x = 421,125,918,157.88/750,679.47
  6. Step 6: Final answer
    x = 560,992.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.