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Finding the Fourth Proportional to 458,743.79, 633,066.44 and 257,539.79

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Solution

The fourth proportional to 458,743.79, 633,066.44 and 257,539.79 is: 355,404.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,743.79 : 633,066.44 = 257,539.79 : x
  2. Step 2: Convert to fraction form
    458,743.79/633,066.44 = 257,539.79/x
  3. Step 3: Cross multiply
    458,743.79x = 633,066.44 × 257,539.79
  4. Step 4: Simplify right side
    458,743.79x = 163,039,798,308.62
  5. Step 5: Solve for x
    x = 163,039,798,308.62/458,743.79
  6. Step 6: Final answer
    x = 355,404.91

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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.