Home / 729,987.01-1,007,235.78-407,647.51

Finding the Fourth Proportional to 729,987.01, 1,007,235.78 and 407,647.51

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Solution

The fourth proportional to 729,987.01, 1,007,235.78 and 407,647.51 is: 562,471.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,987.01 : 1,007,235.78 = 407,647.51 : x
  2. Step 2: Convert to fraction form
    729,987.01/1,007,235.78 = 407,647.51/x
  3. Step 3: Cross multiply
    729,987.01x = 1,007,235.78 × 407,647.51
  4. Step 4: Simplify right side
    729,987.01x = 410,597,153,653.14
  5. Step 5: Solve for x
    x = 410,597,153,653.14/729,987.01
  6. Step 6: Final answer
    x = 562,471.87

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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.