Home / 1,320,141.16-1,821,798.30-716,529.16

Finding the Fourth Proportional to 1,320,141.16, 1,821,798.30 and 716,529.16

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Solution

The fourth proportional to 1,320,141.16, 1,821,798.30 and 716,529.16 is: 988,812.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,141.16 : 1,821,798.30 = 716,529.16 : x
  2. Step 2: Convert to fraction form
    1,320,141.16/1,821,798.30 = 716,529.16/x
  3. Step 3: Cross multiply
    1,320,141.16x = 1,821,798.30 × 716,529.16
  4. Step 4: Simplify right side
    1,320,141.16x = 1,305,371,605,588.43
  5. Step 5: Solve for x
    x = 1,305,371,605,588.43/1,320,141.16
  6. Step 6: Final answer
    x = 988,812.14

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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.