Home / 724,633.60-1,086,378.73-457,831.75

Finding the Fourth Proportional to 724,633.60, 1,086,378.73 and 457,831.75

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Solution

The fourth proportional to 724,633.60, 1,086,378.73 and 457,831.75 is: 686,386.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,633.60 : 1,086,378.73 = 457,831.75 : x
  2. Step 2: Convert to fraction form
    724,633.60/1,086,378.73 = 457,831.75/x
  3. Step 3: Cross multiply
    724,633.60x = 1,086,378.73 × 457,831.75
  4. Step 4: Simplify right side
    724,633.60x = 497,378,675,118.68
  5. Step 5: Solve for x
    x = 497,378,675,118.68/724,633.60
  6. Step 6: Final answer
    x = 686,386.44

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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.