Home / 1,039,989.87-1,559,984.82-281,831.31

Finding the Fourth Proportional to 1,039,989.87, 1,559,984.82 and 281,831.31

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Solution

The fourth proportional to 1,039,989.87, 1,559,984.82 and 281,831.31 is: 422,746.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,039,989.87 : 1,559,984.82 = 281,831.31 : x
  2. Step 2: Convert to fraction form
    1,039,989.87/1,559,984.82 = 281,831.31/x
  3. Step 3: Cross multiply
    1,039,989.87x = 1,559,984.82 × 281,831.31
  4. Step 4: Simplify right side
    1,039,989.87x = 439,652,565,400.71
  5. Step 5: Solve for x
    x = 439,652,565,400.71/1,039,989.87
  6. Step 6: Final answer
    x = 422,746.97

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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.