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Finding the Fourth Proportional to 493,524.51, 681,058.56 and 278,651.76

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Solution

The fourth proportional to 493,524.51, 681,058.56 and 278,651.76 is: 384,536.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,524.51 : 681,058.56 = 278,651.76 : x
  2. Step 2: Convert to fraction form
    493,524.51/681,058.56 = 278,651.76/x
  3. Step 3: Cross multiply
    493,524.51x = 681,058.56 × 278,651.76
  4. Step 4: Simplify right side
    493,524.51x = 189,778,166,407.07
  5. Step 5: Solve for x
    x = 189,778,166,407.07/493,524.51
  6. Step 6: Final answer
    x = 384,536.46

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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.