Home / 2,631,442.34-3,947,161.20-990,426.16

Finding the Fourth Proportional to 2,631,442.34, 3,947,161.20 and 990,426.16

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Solution

The fourth proportional to 2,631,442.34, 3,947,161.20 and 990,426.16 is: 1,485,638.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,631,442.34 : 3,947,161.20 = 990,426.16 : x
  2. Step 2: Convert to fraction form
    2,631,442.34/3,947,161.20 = 990,426.16/x
  3. Step 3: Cross multiply
    2,631,442.34x = 3,947,161.20 × 990,426.16
  4. Step 4: Simplify right side
    2,631,442.34x = 3,909,371,710,216.99
  5. Step 5: Solve for x
    x = 3,909,371,710,216.99/2,631,442.34
  6. Step 6: Final answer
    x = 1,485,638.37

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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.