Home / 821,960.64-1,233,040.59-289,372.68

Finding the Fourth Proportional to 821,960.64, 1,233,040.59 and 289,372.68

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Solution

The fourth proportional to 821,960.64, 1,233,040.59 and 289,372.68 is: 434,094.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,960.64 : 1,233,040.59 = 289,372.68 : x
  2. Step 2: Convert to fraction form
    821,960.64/1,233,040.59 = 289,372.68/x
  3. Step 3: Cross multiply
    821,960.64x = 1,233,040.59 × 289,372.68
  4. Step 4: Simplify right side
    821,960.64x = 356,808,260,077.08
  5. Step 5: Solve for x
    x = 356,808,260,077.08/821,960.64
  6. Step 6: Final answer
    x = 434,094.09

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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.