Home / 765,829.98-1,149,454.31-387,017.28

Finding the Fourth Proportional to 765,829.98, 1,149,454.31 and 387,017.28

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Solution

The fourth proportional to 765,829.98, 1,149,454.31 and 387,017.28 is: 580,884.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,829.98 : 1,149,454.31 = 387,017.28 : x
  2. Step 2: Convert to fraction form
    765,829.98/1,149,454.31 = 387,017.28/x
  3. Step 3: Cross multiply
    765,829.98x = 1,149,454.31 × 387,017.28
  4. Step 4: Simplify right side
    765,829.98x = 444,858,678,605.39
  5. Step 5: Solve for x
    x = 444,858,678,605.39/765,829.98
  6. Step 6: Final answer
    x = 580,884.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.