Home / 631,308.09-947,278.90-294,375.11

Finding the Fourth Proportional to 631,308.09, 947,278.90 and 294,375.11

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Solution

The fourth proportional to 631,308.09, 947,278.90 and 294,375.11 is: 441,710.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,308.09 : 947,278.90 = 294,375.11 : x
  2. Step 2: Convert to fraction form
    631,308.09/947,278.90 = 294,375.11/x
  3. Step 3: Cross multiply
    631,308.09x = 947,278.90 × 294,375.11
  4. Step 4: Simplify right side
    631,308.09x = 278,855,326,019.75
  5. Step 5: Solve for x
    x = 278,855,326,019.75/631,308.09
  6. Step 6: Final answer
    x = 441,710.36

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1.5x scale

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.