Home / 745,026-1,028,135.88-405,496.68

Finding the Fourth Proportional to 745,026, 1,028,135.88 and 405,496.68

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Solution

The fourth proportional to 745,026, 1,028,135.88 and 405,496.68 is: 559,585.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,026 : 1,028,135.88 = 405,496.68 : x
  2. Step 2: Convert to fraction form
    745,026/1,028,135.88 = 405,496.68/x
  3. Step 3: Cross multiply
    745,026x = 1,028,135.88 × 405,496.68
  4. Step 4: Simplify right side
    745,026x = 416,905,685,928.88
  5. Step 5: Solve for x
    x = 416,905,685,928.88/745,026
  6. Step 6: Final answer
    x = 559,585.42

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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.