Home / 750,109.81-1,035,154.83-405,945.78

Finding the Fourth Proportional to 750,109.81, 1,035,154.83 and 405,945.78

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Solution

The fourth proportional to 750,109.81, 1,035,154.83 and 405,945.78 is: 560,206.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    750,109.81 : 1,035,154.83 = 405,945.78 : x
  2. Step 2: Convert to fraction form
    750,109.81/1,035,154.83 = 405,945.78/x
  3. Step 3: Cross multiply
    750,109.81x = 1,035,154.83 × 405,945.78
  4. Step 4: Simplify right side
    750,109.81x = 420,216,734,885.12
  5. Step 5: Solve for x
    x = 420,216,734,885.12/750,109.81
  6. Step 6: Final answer
    x = 560,206.96

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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.