Home / 1,213,813.20-1,822,688.10-879,202.20

Finding the Fourth Proportional to 1,213,813.20, 1,822,688.10 and 879,202.20

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Solution

The fourth proportional to 1,213,813.20, 1,822,688.10 and 879,202.20 is: 1,320,229.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213,813.20 : 1,822,688.10 = 879,202.20 : x
  2. Step 2: Convert to fraction form
    1,213,813.20/1,822,688.10 = 879,202.20/x
  3. Step 3: Cross multiply
    1,213,813.20x = 1,822,688.10 × 879,202.20
  4. Step 4: Simplify right side
    1,213,813.20x = 1,602,511,387,433.82
  5. Step 5: Solve for x
    x = 1,602,511,387,433.82/1,213,813.20
  6. Step 6: Final answer
    x = 1,320,229.00

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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.