Home / 779,601.88-1,075,850.60-421,905.88

Finding the Fourth Proportional to 779,601.88, 1,075,850.60 and 421,905.88

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Solution

The fourth proportional to 779,601.88, 1,075,850.60 and 421,905.88 is: 582,230.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,601.88 : 1,075,850.60 = 421,905.88 : x
  2. Step 2: Convert to fraction form
    779,601.88/1,075,850.60 = 421,905.88/x
  3. Step 3: Cross multiply
    779,601.88x = 1,075,850.60 × 421,905.88
  4. Step 4: Simplify right side
    779,601.88x = 453,907,694,141.53
  5. Step 5: Solve for x
    x = 453,907,694,141.53/779,601.88
  6. Step 6: Final answer
    x = 582,230.12

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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.