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Finding the Fourth Proportional to 500,030.40, 690,043.78 and 270,587.66

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Solution

The fourth proportional to 500,030.40, 690,043.78 and 270,587.66 is: 373,411.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,030.40 : 690,043.78 = 270,587.66 : x
  2. Step 2: Convert to fraction form
    500,030.40/690,043.78 = 270,587.66/x
  3. Step 3: Cross multiply
    500,030.40x = 690,043.78 × 270,587.66
  4. Step 4: Simplify right side
    500,030.40x = 186,717,331,727.76
  5. Step 5: Solve for x
    x = 186,717,331,727.76/500,030.40
  6. Step 6: Final answer
    x = 373,411.96

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