Home / 1,090,305.40-1,635,458.10-988,828.60

Finding the Fourth Proportional to 1,090,305.40, 1,635,458.10 and 988,828.60

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Solution

The fourth proportional to 1,090,305.40, 1,635,458.10 and 988,828.60 is: 1,483,242.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,090,305.40 : 1,635,458.10 = 988,828.60 : x
  2. Step 2: Convert to fraction form
    1,090,305.40/1,635,458.10 = 988,828.60/x
  3. Step 3: Cross multiply
    1,090,305.40x = 1,635,458.10 × 988,828.60
  4. Step 4: Simplify right side
    1,090,305.40x = 1,617,187,743,381.66
  5. Step 5: Solve for x
    x = 1,617,187,743,381.66/1,090,305.40
  6. Step 6: Final answer
    x = 1,483,242.90

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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.