Home / 1,409,700.91-1,945,389.15-765,120.93

Finding the Fourth Proportional to 1,409,700.91, 1,945,389.15 and 765,120.93

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Solution

The fourth proportional to 1,409,700.91, 1,945,389.15 and 765,120.93 is: 1,055,867.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,409,700.91 : 1,945,389.15 = 765,120.93 : x
  2. Step 2: Convert to fraction form
    1,409,700.91/1,945,389.15 = 765,120.93/x
  3. Step 3: Cross multiply
    1,409,700.91x = 1,945,389.15 × 765,120.93
  4. Step 4: Simplify right side
    1,409,700.91x = 1,488,457,962,955.12
  5. Step 5: Solve for x
    x = 1,488,457,962,955.12/1,409,700.91
  6. Step 6: Final answer
    x = 1,055,867.92

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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.