Home / 414,547.66-621,821.55-115,028.29

Finding the Fourth Proportional to 414,547.66, 621,821.55 and 115,028.29

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Solution

The fourth proportional to 414,547.66, 621,821.55 and 115,028.29 is: 172,542.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,547.66 : 621,821.55 = 115,028.29 : x
  2. Step 2: Convert to fraction form
    414,547.66/621,821.55 = 115,028.29/x
  3. Step 3: Cross multiply
    414,547.66x = 621,821.55 × 115,028.29
  4. Step 4: Simplify right side
    414,547.66x = 71,527,069,581.65
  5. Step 5: Solve for x
    x = 71,527,069,581.65/414,547.66
  6. Step 6: Final answer
    x = 172,542.45

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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.