Home / 745,008.67-1,028,309.69-458,768.65

Finding the Fourth Proportional to 745,008.67, 1,028,309.69 and 458,768.65

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Solution

The fourth proportional to 745,008.67, 1,028,309.69 and 458,768.65 is: 633,222.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,008.67 : 1,028,309.69 = 458,768.65 : x
  2. Step 2: Convert to fraction form
    745,008.67/1,028,309.69 = 458,768.65/x
  3. Step 3: Cross multiply
    745,008.67x = 1,028,309.69 × 458,768.65
  4. Step 4: Simplify right side
    745,008.67x = 471,756,245,969.38
  5. Step 5: Solve for x
    x = 471,756,245,969.38/745,008.67
  6. Step 6: Final answer
    x = 633,222.49

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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.