Home / 406,664.40-561,395.16-270,778.80

Finding the Fourth Proportional to 406,664.40, 561,395.16 and 270,778.80

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Solution

The fourth proportional to 406,664.40, 561,395.16 and 270,778.80 is: 373,806.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,664.40 : 561,395.16 = 270,778.80 : x
  2. Step 2: Convert to fraction form
    406,664.40/561,395.16 = 270,778.80/x
  3. Step 3: Cross multiply
    406,664.40x = 561,395.16 × 270,778.80
  4. Step 4: Simplify right side
    406,664.40x = 152,013,907,750.61
  5. Step 5: Solve for x
    x = 152,013,907,750.61/406,664.40
  6. Step 6: Final answer
    x = 373,806.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.