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Finding the Fourth Proportional to 479,433.64, 661,617.76 and 264,573.72

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Solution

The fourth proportional to 479,433.64, 661,617.76 and 264,573.72 is: 365,111.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,433.64 : 661,617.76 = 264,573.72 : x
  2. Step 2: Convert to fraction form
    479,433.64/661,617.76 = 264,573.72/x
  3. Step 3: Cross multiply
    479,433.64x = 661,617.76 × 264,573.72
  4. Step 4: Simplify right side
    479,433.64x = 175,046,671,981.27
  5. Step 5: Solve for x
    x = 175,046,671,981.27/479,433.64
  6. Step 6: Final answer
    x = 365,111.37

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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.