Home / 759,961.32-1,048,688.82-420,422.28

Finding the Fourth Proportional to 759,961.32, 1,048,688.82 and 420,422.28

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Solution

The fourth proportional to 759,961.32, 1,048,688.82 and 420,422.28 is: 580,150.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,961.32 : 1,048,688.82 = 420,422.28 : x
  2. Step 2: Convert to fraction form
    759,961.32/1,048,688.82 = 420,422.28/x
  3. Step 3: Cross multiply
    759,961.32x = 1,048,688.82 × 420,422.28
  4. Step 4: Simplify right side
    759,961.32x = 440,892,144,714.91
  5. Step 5: Solve for x
    x = 440,892,144,714.91/759,961.32
  6. Step 6: Final answer
    x = 580,150.77

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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.