Home / 438,628.31-656,445.48-367,631.12

Finding the Fourth Proportional to 438,628.31, 656,445.48 and 367,631.12

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Solution

The fourth proportional to 438,628.31, 656,445.48 and 367,631.12 is: 550,192.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,628.31 : 656,445.48 = 367,631.12 : x
  2. Step 2: Convert to fraction form
    438,628.31/656,445.48 = 367,631.12/x
  3. Step 3: Cross multiply
    438,628.31x = 656,445.48 × 367,631.12
  4. Step 4: Simplify right side
    438,628.31x = 241,329,783,749.11
  5. Step 5: Solve for x
    x = 241,329,783,749.11/438,628.31
  6. Step 6: Final answer
    x = 550,192.00

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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.