Home / 779,610.38-1,075,862.32-421,914.38

Finding the Fourth Proportional to 779,610.38, 1,075,862.32 and 421,914.38

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Solution

The fourth proportional to 779,610.38, 1,075,862.32 and 421,914.38 is: 582,241.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,610.38 : 1,075,862.32 = 421,914.38 : x
  2. Step 2: Convert to fraction form
    779,610.38/1,075,862.32 = 421,914.38/x
  3. Step 3: Cross multiply
    779,610.38x = 1,075,862.32 × 421,914.38
  4. Step 4: Simplify right side
    779,610.38x = 453,921,777,274.06
  5. Step 5: Solve for x
    x = 453,921,777,274.06/779,610.38
  6. Step 6: Final answer
    x = 582,241.84

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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.