Home / 854,831.28-1,179,380.67-492,247.35

Finding the Fourth Proportional to 854,831.28, 1,179,380.67 and 492,247.35

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Solution

The fourth proportional to 854,831.28, 1,179,380.67 and 492,247.35 is: 679,136.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,831.28 : 1,179,380.67 = 492,247.35 : x
  2. Step 2: Convert to fraction form
    854,831.28/1,179,380.67 = 492,247.35/x
  3. Step 3: Cross multiply
    854,831.28x = 1,179,380.67 × 492,247.35
  4. Step 4: Simplify right side
    854,831.28x = 580,547,009,448.73
  5. Step 5: Solve for x
    x = 580,547,009,448.73/854,831.28
  6. Step 6: Final answer
    x = 679,136.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.