Home / 808,220.80-1,211,553.60-628,206.40

Finding the Fourth Proportional to 808,220.80, 1,211,553.60 and 628,206.40

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Solution

The fourth proportional to 808,220.80, 1,211,553.60 and 628,206.40 is: 941,705.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,220.80 : 1,211,553.60 = 628,206.40 : x
  2. Step 2: Convert to fraction form
    808,220.80/1,211,553.60 = 628,206.40/x
  3. Step 3: Cross multiply
    808,220.80x = 1,211,553.60 × 628,206.40
  4. Step 4: Simplify right side
    808,220.80x = 761,105,725,463.04
  5. Step 5: Solve for x
    x = 761,105,725,463.04/808,220.80
  6. Step 6: Final answer
    x = 941,705.19

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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.