Home / 1,409,574.89-1,945,227.89-765,000.65

Finding the Fourth Proportional to 1,409,574.89, 1,945,227.89 and 765,000.65

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Solution

The fourth proportional to 1,409,574.89, 1,945,227.89 and 765,000.65 is: 1,055,708.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,409,574.89 : 1,945,227.89 = 765,000.65 : x
  2. Step 2: Convert to fraction form
    1,409,574.89/1,945,227.89 = 765,000.65/x
  3. Step 3: Cross multiply
    1,409,574.89x = 1,945,227.89 × 765,000.65
  4. Step 4: Simplify right side
    1,409,574.89x = 1,488,100,596,423.13
  5. Step 5: Solve for x
    x = 1,488,100,596,423.13/1,409,574.89
  6. Step 6: Final answer
    x = 1,055,708.79

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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.