Home / 724,859.36-1,000,185.79-418,964.28

Finding the Fourth Proportional to 724,859.36, 1,000,185.79 and 418,964.28

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Solution

The fourth proportional to 724,859.36, 1,000,185.79 and 418,964.28 is: 578,101.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,859.36 : 1,000,185.79 = 418,964.28 : x
  2. Step 2: Convert to fraction form
    724,859.36/1,000,185.79 = 418,964.28/x
  3. Step 3: Cross multiply
    724,859.36x = 1,000,185.79 × 418,964.28
  4. Step 4: Simplify right side
    724,859.36x = 419,042,119,373.58
  5. Step 5: Solve for x
    x = 419,042,119,373.58/724,859.36
  6. Step 6: Final answer
    x = 578,101.27

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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.