Home / 821,305.48-1,133,389.72-458,734.64

Finding the Fourth Proportional to 821,305.48, 1,133,389.72 and 458,734.64

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Solution

The fourth proportional to 821,305.48, 1,133,389.72 and 458,734.64 is: 633,047.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,305.48 : 1,133,389.72 = 458,734.64 : x
  2. Step 2: Convert to fraction form
    821,305.48/1,133,389.72 = 458,734.64/x
  3. Step 3: Cross multiply
    821,305.48x = 1,133,389.72 × 458,734.64
  4. Step 4: Simplify right side
    821,305.48x = 519,925,125,183.90
  5. Step 5: Solve for x
    x = 519,925,125,183.90/821,305.48
  6. Step 6: Final answer
    x = 633,047.19

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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.