Home / 438,634.20-657,951.30-367,775.40

Finding the Fourth Proportional to 438,634.20, 657,951.30 and 367,775.40

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Solution

The fourth proportional to 438,634.20, 657,951.30 and 367,775.40 is: 551,663.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,634.20 : 657,951.30 = 367,775.40 : x
  2. Step 2: Convert to fraction form
    438,634.20/657,951.30 = 367,775.40/x
  3. Step 3: Cross multiply
    438,634.20x = 657,951.30 × 367,775.40
  4. Step 4: Simplify right side
    438,634.20x = 241,978,302,538.02
  5. Step 5: Solve for x
    x = 241,978,302,538.02/438,634.20
  6. Step 6: Final answer
    x = 551,663.10

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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.