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Finding the Fourth Proportional to 672,303.61, 927,779.15 and 366,380.08

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Solution

The fourth proportional to 672,303.61, 927,779.15 and 366,380.08 is: 505,604.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,303.61 : 927,779.15 = 366,380.08 : x
  2. Step 2: Convert to fraction form
    672,303.61/927,779.15 = 366,380.08/x
  3. Step 3: Cross multiply
    672,303.61x = 927,779.15 × 366,380.08
  4. Step 4: Simplify right side
    672,303.61x = 339,919,799,199.33
  5. Step 5: Solve for x
    x = 339,919,799,199.33/672,303.61
  6. Step 6: Final answer
    x = 505,604.60

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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.