Home / 815,437.40-1,220,736.90-606,003.80

Finding the Fourth Proportional to 815,437.40, 1,220,736.90 and 606,003.80

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Solution

The fourth proportional to 815,437.40, 1,220,736.90 and 606,003.80 is: 907,207.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,437.40 : 1,220,736.90 = 606,003.80 : x
  2. Step 2: Convert to fraction form
    815,437.40/1,220,736.90 = 606,003.80/x
  3. Step 3: Cross multiply
    815,437.40x = 1,220,736.90 × 606,003.80
  4. Step 4: Simplify right side
    815,437.40x = 739,771,200,200.22
  5. Step 5: Solve for x
    x = 739,771,200,200.22/815,437.40
  6. Step 6: Final answer
    x = 907,207.84

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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.