Home / 485,318.48-669,789.59-291,789.50

Finding the Fourth Proportional to 485,318.48, 669,789.59 and 291,789.50

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Solution

The fourth proportional to 485,318.48, 669,789.59 and 291,789.50 is: 402,699.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,318.48 : 669,789.59 = 291,789.50 : x
  2. Step 2: Convert to fraction form
    485,318.48/669,789.59 = 291,789.50/x
  3. Step 3: Cross multiply
    485,318.48x = 669,789.59 × 291,789.50
  4. Step 4: Simplify right side
    485,318.48x = 195,437,564,763.41
  5. Step 5: Solve for x
    x = 195,437,564,763.41/485,318.48
  6. Step 6: Final answer
    x = 402,699.62

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