Home / 455,831.38-628,946.26-262,227.21

Finding the Fourth Proportional to 455,831.38, 628,946.26 and 262,227.21

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Solution

The fourth proportional to 455,831.38, 628,946.26 and 262,227.21 is: 361,815.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,831.38 : 628,946.26 = 262,227.21 : x
  2. Step 2: Convert to fraction form
    455,831.38/628,946.26 = 262,227.21/x
  3. Step 3: Cross multiply
    455,831.38x = 628,946.26 × 262,227.21
  4. Step 4: Simplify right side
    455,831.38x = 164,926,822,999.74
  5. Step 5: Solve for x
    x = 164,926,822,999.74/455,831.38
  6. Step 6: Final answer
    x = 361,815.42

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1.5x scale

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.