Home / 631,860.06-947,839.05-211,137.42

Finding the Fourth Proportional to 631,860.06, 947,839.05 and 211,137.42

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Solution

The fourth proportional to 631,860.06, 947,839.05 and 211,137.42 is: 316,722.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,860.06 : 947,839.05 = 211,137.42 : x
  2. Step 2: Convert to fraction form
    631,860.06/947,839.05 = 211,137.42/x
  3. Step 3: Cross multiply
    631,860.06x = 947,839.05 × 211,137.42
  4. Step 4: Simplify right side
    631,860.06x = 200,124,291,592.25
  5. Step 5: Solve for x
    x = 200,124,291,592.25/631,860.06
  6. Step 6: Final answer
    x = 316,722.49

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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.