Home / 690,831.82-1,036,387.46-291,473.47

Finding the Fourth Proportional to 690,831.82, 1,036,387.46 and 291,473.47

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Solution

The fourth proportional to 690,831.82, 1,036,387.46 and 291,473.47 is: 437,269.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,831.82 : 1,036,387.46 = 291,473.47 : x
  2. Step 2: Convert to fraction form
    690,831.82/1,036,387.46 = 291,473.47/x
  3. Step 3: Cross multiply
    690,831.82x = 1,036,387.46 × 291,473.47
  4. Step 4: Simplify right side
    690,831.82x = 302,079,449,230.69
  5. Step 5: Solve for x
    x = 302,079,449,230.69/690,831.82
  6. Step 6: Final answer
    x = 437,269.16

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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.