Home / 761,458.82-1,050,813.69-421,932.74

Finding the Fourth Proportional to 761,458.82, 1,050,813.69 and 421,932.74

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Solution

The fourth proportional to 761,458.82, 1,050,813.69 and 421,932.74 is: 582,267.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,458.82 : 1,050,813.69 = 421,932.74 : x
  2. Step 2: Convert to fraction form
    761,458.82/1,050,813.69 = 421,932.74/x
  3. Step 3: Cross multiply
    761,458.82x = 1,050,813.69 × 421,932.74
  4. Step 4: Simplify right side
    761,458.82x = 443,372,699,451.21
  5. Step 5: Solve for x
    x = 443,372,699,451.21/761,458.82
  6. Step 6: Final answer
    x = 582,267.47

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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.