Home / 579,581.40-868,205.70-390,624.60

Finding the Fourth Proportional to 579,581.40, 868,205.70 and 390,624.60

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Solution

The fourth proportional to 579,581.40, 868,205.70 and 390,624.60 is: 585,150.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,581.40 : 868,205.70 = 390,624.60 : x
  2. Step 2: Convert to fraction form
    579,581.40/868,205.70 = 390,624.60/x
  3. Step 3: Cross multiply
    579,581.40x = 868,205.70 × 390,624.60
  4. Step 4: Simplify right side
    579,581.40x = 339,142,504,280.22
  5. Step 5: Solve for x
    x = 339,142,504,280.22/579,581.40
  6. Step 6: Final answer
    x = 585,150.77

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