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Finding the Fourth Proportional to 779,649, 1,075,916.22 and 421,953

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Solution

The fourth proportional to 779,649, 1,075,916.22 and 421,953 is: 582,295.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,649 : 1,075,916.22 = 421,953 : x
  2. Step 2: Convert to fraction form
    779,649/1,075,916.22 = 421,953/x
  3. Step 3: Cross multiply
    779,649x = 1,075,916.22 × 421,953
  4. Step 4: Simplify right side
    779,649x = 453,986,076,777.66
  5. Step 5: Solve for x
    x = 453,986,076,777.66/779,649
  6. Step 6: Final answer
    x = 582,295.46

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