Home / 1,768,828.80-2,652,724.80-821,971.20

Finding the Fourth Proportional to 1,768,828.80, 2,652,724.80 and 821,971.20

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Solution

The fourth proportional to 1,768,828.80, 2,652,724.80 and 821,971.20 is: 1,232,715.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,768,828.80 : 2,652,724.80 = 821,971.20 : x
  2. Step 2: Convert to fraction form
    1,768,828.80/2,652,724.80 = 821,971.20/x
  3. Step 3: Cross multiply
    1,768,828.80x = 2,652,724.80 × 821,971.20
  4. Step 4: Simplify right side
    1,768,828.80x = 2,180,463,387,125.76
  5. Step 5: Solve for x
    x = 2,180,463,387,125.76/1,768,828.80
  6. Step 6: Final answer
    x = 1,232,715.90

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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.