Home / 812,831.04-1,219,417.77-307,380.84

Finding the Fourth Proportional to 812,831.04, 1,219,417.77 and 307,380.84

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Solution

The fourth proportional to 812,831.04, 1,219,417.77 and 307,380.84 is: 461,136.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,831.04 : 1,219,417.77 = 307,380.84 : x
  2. Step 2: Convert to fraction form
    812,831.04/1,219,417.77 = 307,380.84/x
  3. Step 3: Cross multiply
    812,831.04x = 1,219,417.77 × 307,380.84
  4. Step 4: Simplify right side
    812,831.04x = 374,825,658,453.53
  5. Step 5: Solve for x
    x = 374,825,658,453.53/812,831.04
  6. Step 6: Final answer
    x = 461,136.00

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1.5x scale

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.