Home / 745,491.72-1,028,751.56-455,588.30

Finding the Fourth Proportional to 745,491.72, 1,028,751.56 and 455,588.30

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Solution

The fourth proportional to 745,491.72, 1,028,751.56 and 455,588.30 is: 628,695.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,491.72 : 1,028,751.56 = 455,588.30 : x
  2. Step 2: Convert to fraction form
    745,491.72/1,028,751.56 = 455,588.30/x
  3. Step 3: Cross multiply
    745,491.72x = 1,028,751.56 × 455,588.30
  4. Step 4: Simplify right side
    745,491.72x = 468,687,173,121.10
  5. Step 5: Solve for x
    x = 468,687,173,121.10/745,491.72
  6. Step 6: Final answer
    x = 628,695.34

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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.