Home / 761,493.60-1,050,861.09-421,961.85

Finding the Fourth Proportional to 761,493.60, 1,050,861.09 and 421,961.85

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Solution

The fourth proportional to 761,493.60, 1,050,861.09 and 421,961.85 is: 582,307.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,493.60 : 1,050,861.09 = 421,961.85 : x
  2. Step 2: Convert to fraction form
    761,493.60/1,050,861.09 = 421,961.85/x
  3. Step 3: Cross multiply
    761,493.60x = 1,050,861.09 × 421,961.85
  4. Step 4: Simplify right side
    761,493.60x = 443,423,289,629.42
  5. Step 5: Solve for x
    x = 443,423,289,629.42/761,493.60
  6. Step 6: Final answer
    x = 582,307.31

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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.