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Finding the Fourth Proportional to 559,950.12, 772,711.92 and 318,228.48

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Solution

The fourth proportional to 559,950.12, 772,711.92 and 318,228.48 is: 439,144.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,950.12 : 772,711.92 = 318,228.48 : x
  2. Step 2: Convert to fraction form
    559,950.12/772,711.92 = 318,228.48/x
  3. Step 3: Cross multiply
    559,950.12x = 772,711.92 × 318,228.48
  4. Step 4: Simplify right side
    559,950.12x = 245,898,939,779.48
  5. Step 5: Solve for x
    x = 245,898,939,779.48/559,950.12
  6. Step 6: Final answer
    x = 439,144.36

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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.