Home / 455,831.20-684,362.40-266,485.60

Finding the Fourth Proportional to 455,831.20, 684,362.40 and 266,485.60

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Solution

The fourth proportional to 455,831.20, 684,362.40 and 266,485.60 is: 400,088.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,831.20 : 684,362.40 = 266,485.60 : x
  2. Step 2: Convert to fraction form
    455,831.20/684,362.40 = 266,485.60/x
  3. Step 3: Cross multiply
    455,831.20x = 684,362.40 × 266,485.60
  4. Step 4: Simplify right side
    455,831.20x = 182,372,724,781.44
  5. Step 5: Solve for x
    x = 182,372,724,781.44/455,831.20
  6. Step 6: Final answer
    x = 400,088.29

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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.