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Finding the Fourth Proportional to 707,831.01, 977,020.25 and 481,607.73

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Solution

The fourth proportional to 707,831.01, 977,020.25 and 481,607.73 is: 664,763.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,831.01 : 977,020.25 = 481,607.73 : x
  2. Step 2: Convert to fraction form
    707,831.01/977,020.25 = 481,607.73/x
  3. Step 3: Cross multiply
    707,831.01x = 977,020.25 × 481,607.73
  4. Step 4: Simplify right side
    707,831.01x = 470,540,502,358.49
  5. Step 5: Solve for x
    x = 470,540,502,358.49/707,831.01
  6. Step 6: Final answer
    x = 664,763.90

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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.