Home / 819,223.80-1,228,835.70-679,255.80

Finding the Fourth Proportional to 819,223.80, 1,228,835.70 and 679,255.80

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Solution

The fourth proportional to 819,223.80, 1,228,835.70 and 679,255.80 is: 1,018,883.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,223.80 : 1,228,835.70 = 679,255.80 : x
  2. Step 2: Convert to fraction form
    819,223.80/1,228,835.70 = 679,255.80/x
  3. Step 3: Cross multiply
    819,223.80x = 1,228,835.70 × 679,255.80
  4. Step 4: Simplify right side
    819,223.80x = 834,693,776,472.06
  5. Step 5: Solve for x
    x = 834,693,776,472.06/819,223.80
  6. Step 6: Final answer
    x = 1,018,883.70

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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.