Home / 821,319.39-1,133,408.69-458,748.54

Finding the Fourth Proportional to 821,319.39, 1,133,408.69 and 458,748.54

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Solution

The fourth proportional to 821,319.39, 1,133,408.69 and 458,748.54 is: 633,066.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,319.39 : 1,133,408.69 = 458,748.54 : x
  2. Step 2: Convert to fraction form
    821,319.39/1,133,408.69 = 458,748.54/x
  3. Step 3: Cross multiply
    821,319.39x = 1,133,408.69 × 458,748.54
  4. Step 4: Simplify right side
    821,319.39x = 519,949,581,760.81
  5. Step 5: Solve for x
    x = 519,949,581,760.81/821,319.39
  6. Step 6: Final answer
    x = 633,066.24

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1.5x scale

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.