Home / 642,811.78-887,087.48-367,206.14

Finding the Fourth Proportional to 642,811.78, 887,087.48 and 367,206.14

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Solution

The fourth proportional to 642,811.78, 887,087.48 and 367,206.14 is: 506,748.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,811.78 : 887,087.48 = 367,206.14 : x
  2. Step 2: Convert to fraction form
    642,811.78/887,087.48 = 367,206.14/x
  3. Step 3: Cross multiply
    642,811.78x = 887,087.48 × 367,206.14
  4. Step 4: Simplify right side
    642,811.78x = 325,743,969,373.13
  5. Step 5: Solve for x
    x = 325,743,969,373.13/642,811.78
  6. Step 6: Final answer
    x = 506,748.60

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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.