Home / 779,620.50-1,075,876.38-421,924.50

Finding the Fourth Proportional to 779,620.50, 1,075,876.38 and 421,924.50

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Solution

The fourth proportional to 779,620.50, 1,075,876.38 and 421,924.50 is: 582,255.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,620.50 : 1,075,876.38 = 421,924.50 : x
  2. Step 2: Convert to fraction form
    779,620.50/1,075,876.38 = 421,924.50/x
  3. Step 3: Cross multiply
    779,620.50x = 1,075,876.38 × 421,924.50
  4. Step 4: Simplify right side
    779,620.50x = 453,938,603,693.31
  5. Step 5: Solve for x
    x = 453,938,603,693.31/779,620.50
  6. Step 6: Final answer
    x = 582,255.86

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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.