Home / 761,447.44-1,050,781.80-421,912.72

Finding the Fourth Proportional to 761,447.44, 1,050,781.80 and 421,912.72

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Solution

The fourth proportional to 761,447.44, 1,050,781.80 and 421,912.72 is: 582,230.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,447.44 : 1,050,781.80 = 421,912.72 : x
  2. Step 2: Convert to fraction form
    761,447.44/1,050,781.80 = 421,912.72/x
  3. Step 3: Cross multiply
    761,447.44x = 1,050,781.80 × 421,912.72
  4. Step 4: Simplify right side
    761,447.44x = 443,338,207,364.50
  5. Step 5: Solve for x
    x = 443,338,207,364.50/761,447.44
  6. Step 6: Final answer
    x = 582,230.87

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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.