Home / 815,436.40-1,220,735.40-606,002.80

Finding the Fourth Proportional to 815,436.40, 1,220,735.40 and 606,002.80

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Solution

The fourth proportional to 815,436.40, 1,220,735.40 and 606,002.80 is: 907,206.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,436.40 : 1,220,735.40 = 606,002.80 : x
  2. Step 2: Convert to fraction form
    815,436.40/1,220,735.40 = 606,002.80/x
  3. Step 3: Cross multiply
    815,436.40x = 1,220,735.40 × 606,002.80
  4. Step 4: Simplify right side
    815,436.40x = 739,769,070,459.12
  5. Step 5: Solve for x
    x = 739,769,070,459.12/815,436.40
  6. Step 6: Final answer
    x = 907,206.34

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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.