Home / 854,831.40-1,282,247.10-818,428.20

Finding the Fourth Proportional to 854,831.40, 1,282,247.10 and 818,428.20

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Solution

The fourth proportional to 854,831.40, 1,282,247.10 and 818,428.20 is: 1,227,642.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,831.40 : 1,282,247.10 = 818,428.20 : x
  2. Step 2: Convert to fraction form
    854,831.40/1,282,247.10 = 818,428.20/x
  3. Step 3: Cross multiply
    854,831.40x = 1,282,247.10 × 818,428.20
  4. Step 4: Simplify right side
    854,831.40x = 1,049,427,186,008.22
  5. Step 5: Solve for x
    x = 1,049,427,186,008.22/854,831.40
  6. Step 6: Final answer
    x = 1,227,642.30

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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.