Home / 1,313,728.56-1,812,944.16-710,116.56

Finding the Fourth Proportional to 1,313,728.56, 1,812,944.16 and 710,116.56

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Solution

The fourth proportional to 1,313,728.56, 1,812,944.16 and 710,116.56 is: 979,960.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,313,728.56 : 1,812,944.16 = 710,116.56 : x
  2. Step 2: Convert to fraction form
    1,313,728.56/1,812,944.16 = 710,116.56/x
  3. Step 3: Cross multiply
    1,313,728.56x = 1,812,944.16 × 710,116.56
  4. Step 4: Simplify right side
    1,313,728.56x = 1,287,401,670,371.29
  5. Step 5: Solve for x
    x = 1,287,401,670,371.29/1,313,728.56
  6. Step 6: Final answer
    x = 979,960.18

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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.