Home / 780,258.56-1,170,428.33-247,821.26

Finding the Fourth Proportional to 780,258.56, 1,170,428.33 and 247,821.26

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Solution

The fourth proportional to 780,258.56, 1,170,428.33 and 247,821.26 is: 371,744.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,258.56 : 1,170,428.33 = 247,821.26 : x
  2. Step 2: Convert to fraction form
    780,258.56/1,170,428.33 = 247,821.26/x
  3. Step 3: Cross multiply
    780,258.56x = 1,170,428.33 × 247,821.26
  4. Step 4: Simplify right side
    780,258.56x = 290,057,018,247.71
  5. Step 5: Solve for x
    x = 290,057,018,247.71/780,258.56
  6. Step 6: Final answer
    x = 371,744.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.