Home / 750,071.79-1,035,091.77-405,900.36

Finding the Fourth Proportional to 750,071.79, 1,035,091.77 and 405,900.36

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Solution

The fourth proportional to 750,071.79, 1,035,091.77 and 405,900.36 is: 560,138.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    750,071.79 : 1,035,091.77 = 405,900.36 : x
  2. Step 2: Convert to fraction form
    750,071.79/1,035,091.77 = 405,900.36/x
  3. Step 3: Cross multiply
    750,071.79x = 1,035,091.77 × 405,900.36
  4. Step 4: Simplify right side
    750,071.79x = 420,144,122,076.04
  5. Step 5: Solve for x
    x = 420,144,122,076.04/750,071.79
  6. Step 6: Final answer
    x = 560,138.55

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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.