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Finding the Fourth Proportional to 479,263.87, 661,386.36 and 264,403.87

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Solution

The fourth proportional to 479,263.87, 661,386.36 and 264,403.87 is: 364,878.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,263.87 : 661,386.36 = 264,403.87 : x
  2. Step 2: Convert to fraction form
    479,263.87/661,386.36 = 264,403.87/x
  3. Step 3: Cross multiply
    479,263.87x = 661,386.36 × 264,403.87
  4. Step 4: Simplify right side
    479,263.87x = 174,873,113,149.21
  5. Step 5: Solve for x
    x = 174,873,113,149.21/479,263.87
  6. Step 6: Final answer
    x = 364,878.57

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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.