Home / 922,560.64-1,383,899.36-389,982.40

Finding the Fourth Proportional to 922,560.64, 1,383,899.36 and 389,982.40

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Solution

The fourth proportional to 922,560.64, 1,383,899.36 and 389,982.40 is: 584,998.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,560.64 : 1,383,899.36 = 389,982.40 : x
  2. Step 2: Convert to fraction form
    922,560.64/1,383,899.36 = 389,982.40/x
  3. Step 3: Cross multiply
    922,560.64x = 1,383,899.36 × 389,982.40
  4. Step 4: Simplify right side
    922,560.64x = 539,696,393,771.26
  5. Step 5: Solve for x
    x = 539,696,393,771.26/922,560.64
  6. Step 6: Final answer
    x = 584,998.29

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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.