Home / 993,399.72-1,370,921.30-611,646.76

Finding the Fourth Proportional to 993,399.72, 1,370,921.30 and 611,646.76

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Solution

The fourth proportional to 993,399.72, 1,370,921.30 and 611,646.76 is: 844,090.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,399.72 : 1,370,921.30 = 611,646.76 : x
  2. Step 2: Convert to fraction form
    993,399.72/1,370,921.30 = 611,646.76/x
  3. Step 3: Cross multiply
    993,399.72x = 1,370,921.30 × 611,646.76
  4. Step 4: Simplify right side
    993,399.72x = 838,519,571,359.99
  5. Step 5: Solve for x
    x = 838,519,571,359.99/993,399.72
  6. Step 6: Final answer
    x = 844,090.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.