Home / 808,220.40-1,212,476.40-407,853.60

Finding the Fourth Proportional to 808,220.40, 1,212,476.40 and 407,853.60

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Solution

The fourth proportional to 808,220.40, 1,212,476.40 and 407,853.60 is: 611,853.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,220.40 : 1,212,476.40 = 407,853.60 : x
  2. Step 2: Convert to fraction form
    808,220.40/1,212,476.40 = 407,853.60/x
  3. Step 3: Cross multiply
    808,220.40x = 1,212,476.40 × 407,853.60
  4. Step 4: Simplify right side
    808,220.40x = 494,512,864,655.04
  5. Step 5: Solve for x
    x = 494,512,864,655.04/808,220.40
  6. Step 6: Final answer
    x = 611,853.98

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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.