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Finding the Fourth Proportional to 454,788.68, 627,780.66 and 357,741.32

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Solution

The fourth proportional to 454,788.68, 627,780.66 and 357,741.32 is: 493,818.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,788.68 : 627,780.66 = 357,741.32 : x
  2. Step 2: Convert to fraction form
    454,788.68/627,780.66 = 357,741.32/x
  3. Step 3: Cross multiply
    454,788.68x = 627,780.66 × 357,741.32
  4. Step 4: Simplify right side
    454,788.68x = 224,583,081,978.87
  5. Step 5: Solve for x
    x = 224,583,081,978.87/454,788.68
  6. Step 6: Final answer
    x = 493,818.54

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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.