Home / 413,831.80-620,690.10-133,377.40

Finding the Fourth Proportional to 413,831.80, 620,690.10 and 133,377.40

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Solution

The fourth proportional to 413,831.80, 620,690.10 and 133,377.40 is: 200,047.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,831.80 : 620,690.10 = 133,377.40 : x
  2. Step 2: Convert to fraction form
    413,831.80/620,690.10 = 133,377.40/x
  3. Step 3: Cross multiply
    413,831.80x = 620,690.10 × 133,377.40
  4. Step 4: Simplify right side
    413,831.80x = 82,786,031,743.74
  5. Step 5: Solve for x
    x = 82,786,031,743.74/413,831.80
  6. Step 6: Final answer
    x = 200,047.54

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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.