Home / 745,266.63-1,028,467.95-405,734.88

Finding the Fourth Proportional to 745,266.63, 1,028,467.95 and 405,734.88

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Solution

The fourth proportional to 745,266.63, 1,028,467.95 and 405,734.88 is: 559,914.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,266.63 : 1,028,467.95 = 405,734.88 : x
  2. Step 2: Convert to fraction form
    745,266.63/1,028,467.95 = 405,734.88/x
  3. Step 3: Cross multiply
    745,266.63x = 1,028,467.95 × 405,734.88
  4. Step 4: Simplify right side
    745,266.63x = 417,285,322,612.35
  5. Step 5: Solve for x
    x = 417,285,322,612.35/745,266.63
  6. Step 6: Final answer
    x = 559,914.14

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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.