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Finding the Fourth Proportional to 495,518.66, 682,565.37 and 399,757.22

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Solution

The fourth proportional to 495,518.66, 682,565.37 and 399,757.22 is: 550,656.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,518.66 : 682,565.37 = 399,757.22 : x
  2. Step 2: Convert to fraction form
    495,518.66/682,565.37 = 399,757.22/x
  3. Step 3: Cross multiply
    495,518.66x = 682,565.37 × 399,757.22
  4. Step 4: Simplify right side
    495,518.66x = 272,860,434,779.47
  5. Step 5: Solve for x
    x = 272,860,434,779.47/495,518.66
  6. Step 6: Final answer
    x = 550,656.23

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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.