Home / 779,546.50-1,075,774.17-421,850.50

Finding the Fourth Proportional to 779,546.50, 1,075,774.17 and 421,850.50

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Solution

The fourth proportional to 779,546.50, 1,075,774.17 and 421,850.50 is: 582,153.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,546.50 : 1,075,774.17 = 421,850.50 : x
  2. Step 2: Convert to fraction form
    779,546.50/1,075,774.17 = 421,850.50/x
  3. Step 3: Cross multiply
    779,546.50x = 1,075,774.17 × 421,850.50
  4. Step 4: Simplify right side
    779,546.50x = 453,815,871,501.59
  5. Step 5: Solve for x
    x = 453,815,871,501.59/779,546.50
  6. Step 6: Final answer
    x = 582,153.69

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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.