Home / 1,319,012.94-1,977,190.20-519,985.20

Finding the Fourth Proportional to 1,319,012.94, 1,977,190.20 and 519,985.20

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Solution

The fourth proportional to 1,319,012.94, 1,977,190.20 and 519,985.20 is: 779,453.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,012.94 : 1,977,190.20 = 519,985.20 : x
  2. Step 2: Convert to fraction form
    1,319,012.94/1,977,190.20 = 519,985.20/x
  3. Step 3: Cross multiply
    1,319,012.94x = 1,977,190.20 × 519,985.20
  4. Step 4: Simplify right side
    1,319,012.94x = 1,028,109,641,585.04
  5. Step 5: Solve for x
    x = 1,028,109,641,585.04/1,319,012.94
  6. Step 6: Final answer
    x = 779,453.79

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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.