Home / 687,263.06-948,470.38-385,476.50

Finding the Fourth Proportional to 687,263.06, 948,470.38 and 385,476.50

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Solution

The fourth proportional to 687,263.06, 948,470.38 and 385,476.50 is: 531,984.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,263.06 : 948,470.38 = 385,476.50 : x
  2. Step 2: Convert to fraction form
    687,263.06/948,470.38 = 385,476.50/x
  3. Step 3: Cross multiply
    687,263.06x = 948,470.38 × 385,476.50
  4. Step 4: Simplify right side
    687,263.06x = 365,613,042,436.07
  5. Step 5: Solve for x
    x = 365,613,042,436.07/687,263.06
  6. Step 6: Final answer
    x = 531,984.13

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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.