Home / 1,219,314.87-1,830,107.13-620,724.15

Finding the Fourth Proportional to 1,219,314.87, 1,830,107.13 and 620,724.15

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Solution

The fourth proportional to 1,219,314.87, 1,830,107.13 and 620,724.15 is: 931,663.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,219,314.87 : 1,830,107.13 = 620,724.15 : x
  2. Step 2: Convert to fraction form
    1,219,314.87/1,830,107.13 = 620,724.15/x
  3. Step 3: Cross multiply
    1,219,314.87x = 1,830,107.13 × 620,724.15
  4. Step 4: Simplify right side
    1,219,314.87x = 1,135,991,692,678.19
  5. Step 5: Solve for x
    x = 1,135,991,692,678.19/1,219,314.87
  6. Step 6: Final answer
    x = 931,663.94

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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.