Home / 815,756.04-1,224,381.12-416,676.60

Finding the Fourth Proportional to 815,756.04, 1,224,381.12 and 416,676.60

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Solution

The fourth proportional to 815,756.04, 1,224,381.12 and 416,676.60 is: 625,396.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,756.04 : 1,224,381.12 = 416,676.60 : x
  2. Step 2: Convert to fraction form
    815,756.04/1,224,381.12 = 416,676.60/x
  3. Step 3: Cross multiply
    815,756.04x = 1,224,381.12 × 416,676.60
  4. Step 4: Simplify right side
    815,756.04x = 510,170,962,185.79
  5. Step 5: Solve for x
    x = 510,170,962,185.79/815,756.04
  6. Step 6: Final answer
    x = 625,396.49

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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.