Home / 815,433.40-1,220,730.90-605,999.80

Finding the Fourth Proportional to 815,433.40, 1,220,730.90 and 605,999.80

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Solution

The fourth proportional to 815,433.40, 1,220,730.90 and 605,999.80 is: 907,201.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,433.40 : 1,220,730.90 = 605,999.80 : x
  2. Step 2: Convert to fraction form
    815,433.40/1,220,730.90 = 605,999.80/x
  3. Step 3: Cross multiply
    815,433.40x = 1,220,730.90 × 605,999.80
  4. Step 4: Simplify right side
    815,433.40x = 739,762,681,253.82
  5. Step 5: Solve for x
    x = 739,762,681,253.82/815,433.40
  6. Step 6: Final answer
    x = 907,201.84

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1.5x scale

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.