Home / 1,319,047.20-1,977,112.80-520,063.20

Finding the Fourth Proportional to 1,319,047.20, 1,977,112.80 and 520,063.20

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Solution

The fourth proportional to 1,319,047.20, 1,977,112.80 and 520,063.20 is: 779,519.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,047.20 : 1,977,112.80 = 520,063.20 : x
  2. Step 2: Convert to fraction form
    1,319,047.20/1,977,112.80 = 520,063.20/x
  3. Step 3: Cross multiply
    1,319,047.20x = 1,977,112.80 × 520,063.20
  4. Step 4: Simplify right side
    1,319,047.20x = 1,028,223,609,528.96
  5. Step 5: Solve for x
    x = 1,028,223,609,528.96/1,319,047.20
  6. Step 6: Final answer
    x = 779,519.95

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