Home / 761,917.42-1,051,447.52-422,385.67

Finding the Fourth Proportional to 761,917.42, 1,051,447.52 and 422,385.67

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Solution

The fourth proportional to 761,917.42, 1,051,447.52 and 422,385.67 is: 582,893.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,917.42 : 1,051,447.52 = 422,385.67 : x
  2. Step 2: Convert to fraction form
    761,917.42/1,051,447.52 = 422,385.67/x
  3. Step 3: Cross multiply
    761,917.42x = 1,051,447.52 × 422,385.67
  4. Step 4: Simplify right side
    761,917.42x = 444,116,357,835.87
  5. Step 5: Solve for x
    x = 444,116,357,835.87/761,917.42
  6. Step 6: Final answer
    x = 582,893.04

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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.