Home / 761,452.44-1,050,788.70-421,917.72

Finding the Fourth Proportional to 761,452.44, 1,050,788.70 and 421,917.72

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Solution

The fourth proportional to 761,452.44, 1,050,788.70 and 421,917.72 is: 582,237.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,452.44 : 1,050,788.70 = 421,917.72 : x
  2. Step 2: Convert to fraction form
    761,452.44/1,050,788.70 = 421,917.72/x
  3. Step 3: Cross multiply
    761,452.44x = 1,050,788.70 × 421,917.72
  4. Step 4: Simplify right side
    761,452.44x = 443,346,372,505.76
  5. Step 5: Solve for x
    x = 443,346,372,505.76/761,452.44
  6. Step 6: Final answer
    x = 582,237.77

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1.5x scale

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.