Home / 1,054,139-1,581,504.12-423,495.68

Finding the Fourth Proportional to 1,054,139, 1,581,504.12 and 423,495.68

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Solution

The fourth proportional to 1,054,139, 1,581,504.12 and 423,495.68 is: 635,362.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,054,139 : 1,581,504.12 = 423,495.68 : x
  2. Step 2: Convert to fraction form
    1,054,139/1,581,504.12 = 423,495.68/x
  3. Step 3: Cross multiply
    1,054,139x = 1,581,504.12 × 423,495.68
  4. Step 4: Simplify right side
    1,054,139x = 669,760,162,722.20
  5. Step 5: Solve for x
    x = 669,760,162,722.20/1,054,139
  6. Step 6: Final answer
    x = 635,362.28

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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.