Home / 745,578.18-1,028,007.45-609,109.38

Finding the Fourth Proportional to 745,578.18, 1,028,007.45 and 609,109.38

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Solution

The fourth proportional to 745,578.18, 1,028,007.45 and 609,109.38 is: 839,843.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,578.18 : 1,028,007.45 = 609,109.38 : x
  2. Step 2: Convert to fraction form
    745,578.18/1,028,007.45 = 609,109.38/x
  3. Step 3: Cross multiply
    745,578.18x = 1,028,007.45 × 609,109.38
  4. Step 4: Simplify right side
    745,578.18x = 626,168,980,504.88
  5. Step 5: Solve for x
    x = 626,168,980,504.88/745,578.18
  6. Step 6: Final answer
    x = 839,843.49

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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.