Home / 687,632.42-1,031,455.71-207,864.15

Finding the Fourth Proportional to 687,632.42, 1,031,455.71 and 207,864.15

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Solution

The fourth proportional to 687,632.42, 1,031,455.71 and 207,864.15 is: 311,798.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,632.42 : 1,031,455.71 = 207,864.15 : x
  2. Step 2: Convert to fraction form
    687,632.42/1,031,455.71 = 207,864.15/x
  3. Step 3: Cross multiply
    687,632.42x = 1,031,455.71 × 207,864.15
  4. Step 4: Simplify right side
    687,632.42x = 214,402,664,421.80
  5. Step 5: Solve for x
    x = 214,402,664,421.80/687,632.42
  6. Step 6: Final answer
    x = 311,798.37

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