Home / 724,940.88-1,000,496.80-438,618.84

Finding the Fourth Proportional to 724,940.88, 1,000,496.80 and 438,618.84

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Solution

The fourth proportional to 724,940.88, 1,000,496.80 and 438,618.84 is: 605,341.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,940.88 : 1,000,496.80 = 438,618.84 : x
  2. Step 2: Convert to fraction form
    724,940.88/1,000,496.80 = 438,618.84/x
  3. Step 3: Cross multiply
    724,940.88x = 1,000,496.80 × 438,618.84
  4. Step 4: Simplify right side
    724,940.88x = 438,836,745,839.71
  5. Step 5: Solve for x
    x = 438,836,745,839.71/724,940.88
  6. Step 6: Final answer
    x = 605,341.43

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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.