Home / 782,883.70-1,080,381.56-456,390.59

Finding the Fourth Proportional to 782,883.70, 1,080,381.56 and 456,390.59

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Solution

The fourth proportional to 782,883.70, 1,080,381.56 and 456,390.59 is: 629,820.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,883.70 : 1,080,381.56 = 456,390.59 : x
  2. Step 2: Convert to fraction form
    782,883.70/1,080,381.56 = 456,390.59/x
  3. Step 3: Cross multiply
    782,883.70x = 1,080,381.56 × 456,390.59
  4. Step 4: Simplify right side
    782,883.70x = 493,075,969,909.66
  5. Step 5: Solve for x
    x = 493,075,969,909.66/782,883.70
  6. Step 6: Final answer
    x = 629,820.20

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Double scale
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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.