Home / 879,427.20-1,319,140.80-214,579.20

Finding the Fourth Proportional to 879,427.20, 1,319,140.80 and 214,579.20

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Solution

The fourth proportional to 879,427.20, 1,319,140.80 and 214,579.20 is: 321,868.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,427.20 : 1,319,140.80 = 214,579.20 : x
  2. Step 2: Convert to fraction form
    879,427.20/1,319,140.80 = 214,579.20/x
  3. Step 3: Cross multiply
    879,427.20x = 1,319,140.80 × 214,579.20
  4. Step 4: Simplify right side
    879,427.20x = 283,060,177,551.36
  5. Step 5: Solve for x
    x = 283,060,177,551.36/879,427.20
  6. Step 6: Final answer
    x = 321,868.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.