Home / 631,286.35-870,948.79-373,109.11

Finding the Fourth Proportional to 631,286.35, 870,948.79 and 373,109.11

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Solution

The fourth proportional to 631,286.35, 870,948.79 and 373,109.11 is: 514,756.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,286.35 : 870,948.79 = 373,109.11 : x
  2. Step 2: Convert to fraction form
    631,286.35/870,948.79 = 373,109.11/x
  3. Step 3: Cross multiply
    631,286.35x = 870,948.79 × 373,109.11
  4. Step 4: Simplify right side
    631,286.35x = 324,958,927,892.48
  5. Step 5: Solve for x
    x = 324,958,927,892.48/631,286.35
  6. Step 6: Final answer
    x = 514,756.78

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1.5x scale

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.