Home / 765,005.72-1,146,458.78-484,019.96

Finding the Fourth Proportional to 765,005.72, 1,146,458.78 and 484,019.96

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Solution

The fourth proportional to 765,005.72, 1,146,458.78 and 484,019.96 is: 725,365.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,005.72 : 1,146,458.78 = 484,019.96 : x
  2. Step 2: Convert to fraction form
    765,005.72/1,146,458.78 = 484,019.96/x
  3. Step 3: Cross multiply
    765,005.72x = 1,146,458.78 × 484,019.96
  4. Step 4: Simplify right side
    765,005.72x = 554,908,932,837.25
  5. Step 5: Solve for x
    x = 554,908,932,837.25/765,005.72
  6. Step 6: Final answer
    x = 725,365.73

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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.