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Finding the Fourth Proportional to 571,499.06, 855,566.93 and 381,488.13

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Solution

The fourth proportional to 571,499.06, 855,566.93 and 381,488.13 is: 571,109.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,499.06 : 855,566.93 = 381,488.13 : x
  2. Step 2: Convert to fraction form
    571,499.06/855,566.93 = 381,488.13/x
  3. Step 3: Cross multiply
    571,499.06x = 855,566.93 × 381,488.13
  4. Step 4: Simplify right side
    571,499.06x = 326,388,630,773.45
  5. Step 5: Solve for x
    x = 326,388,630,773.45/571,499.06
  6. Step 6: Final answer
    x = 571,109.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.