Home / 779,583.21-1,075,824.82-421,887.21

Finding the Fourth Proportional to 779,583.21, 1,075,824.82 and 421,887.21

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Solution

The fourth proportional to 779,583.21, 1,075,824.82 and 421,887.21 is: 582,204.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,583.21 : 1,075,824.82 = 421,887.21 : x
  2. Step 2: Convert to fraction form
    779,583.21/1,075,824.82 = 421,887.21/x
  3. Step 3: Cross multiply
    779,583.21x = 1,075,824.82 × 421,887.21
  4. Step 4: Simplify right side
    779,583.21x = 453,876,731,758.55
  5. Step 5: Solve for x
    x = 453,876,731,758.55/779,583.21
  6. Step 6: Final answer
    x = 582,204.34

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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.