Home / 919,831.40-1,379,747.46-413,801.30

Finding the Fourth Proportional to 919,831.40, 1,379,747.46 and 413,801.30

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Solution

The fourth proportional to 919,831.40, 1,379,747.46 and 413,801.30 is: 620,702.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,831.40 : 1,379,747.46 = 413,801.30 : x
  2. Step 2: Convert to fraction form
    919,831.40/1,379,747.46 = 413,801.30/x
  3. Step 3: Cross multiply
    919,831.40x = 1,379,747.46 × 413,801.30
  4. Step 4: Simplify right side
    919,831.40x = 570,941,292,619.70
  5. Step 5: Solve for x
    x = 570,941,292,619.70/919,831.40
  6. Step 6: Final answer
    x = 620,702.11

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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.