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Finding the Fourth Proportional to 636,317.54, 955,167.92 and 257,499.08

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Solution

The fourth proportional to 636,317.54, 955,167.92 and 257,499.08 is: 386,528.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,317.54 : 955,167.92 = 257,499.08 : x
  2. Step 2: Convert to fraction form
    636,317.54/955,167.92 = 257,499.08/x
  3. Step 3: Cross multiply
    636,317.54x = 955,167.92 × 257,499.08
  4. Step 4: Simplify right side
    636,317.54x = 245,954,860,645.51
  5. Step 5: Solve for x
    x = 245,954,860,645.51/636,317.54
  6. Step 6: Final answer
    x = 386,528.49

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1.5x scale

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.