Home / 1,320,076-1,821,709.74-716,464

Finding the Fourth Proportional to 1,320,076, 1,821,709.74 and 716,464

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Solution

The fourth proportional to 1,320,076, 1,821,709.74 and 716,464 is: 988,722.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,076 : 1,821,709.74 = 716,464 : x
  2. Step 2: Convert to fraction form
    1,320,076/1,821,709.74 = 716,464/x
  3. Step 3: Cross multiply
    1,320,076x = 1,821,709.74 × 716,464
  4. Step 4: Simplify right side
    1,320,076x = 1,305,189,447,159.36
  5. Step 5: Solve for x
    x = 1,305,189,447,159.36/1,320,076
  6. Step 6: Final answer
    x = 988,722.96

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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.