Home / 1,313,729.56-1,812,945.54-710,117.56

Finding the Fourth Proportional to 1,313,729.56, 1,812,945.54 and 710,117.56

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Solution

The fourth proportional to 1,313,729.56, 1,812,945.54 and 710,117.56 is: 979,961.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,313,729.56 : 1,812,945.54 = 710,117.56 : x
  2. Step 2: Convert to fraction form
    1,313,729.56/1,812,945.54 = 710,117.56/x
  3. Step 3: Cross multiply
    1,313,729.56x = 1,812,945.54 × 710,117.56
  4. Step 4: Simplify right side
    1,313,729.56x = 1,287,404,463,277.68
  5. Step 5: Solve for x
    x = 1,287,404,463,277.68/1,313,729.56
  6. Step 6: Final answer
    x = 979,961.56

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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.