Home / 745,328.62-1,028,578.80-418,699.27

Finding the Fourth Proportional to 745,328.62, 1,028,578.80 and 418,699.27

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Solution

The fourth proportional to 745,328.62, 1,028,578.80 and 418,699.27 is: 577,819.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,328.62 : 1,028,578.80 = 418,699.27 : x
  2. Step 2: Convert to fraction form
    745,328.62/1,028,578.80 = 418,699.27/x
  3. Step 3: Cross multiply
    745,328.62x = 1,028,578.80 × 418,699.27
  4. Step 4: Simplify right side
    745,328.62x = 430,665,192,697.48
  5. Step 5: Solve for x
    x = 430,665,192,697.48/745,328.62
  6. Step 6: Final answer
    x = 577,819.21

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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.