Home / 779,581.21-1,075,822.06-421,885.21

Finding the Fourth Proportional to 779,581.21, 1,075,822.06 and 421,885.21

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Solution

The fourth proportional to 779,581.21, 1,075,822.06 and 421,885.21 is: 582,201.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,581.21 : 1,075,822.06 = 421,885.21 : x
  2. Step 2: Convert to fraction form
    779,581.21/1,075,822.06 = 421,885.21/x
  3. Step 3: Cross multiply
    779,581.21x = 1,075,822.06 × 421,885.21
  4. Step 4: Simplify right side
    779,581.21x = 453,873,410,326.62
  5. Step 5: Solve for x
    x = 453,873,410,326.62/779,581.21
  6. Step 6: Final answer
    x = 582,201.58

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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.