Home / 815,615.58-1,223,435.67-283,153.53

Finding the Fourth Proportional to 815,615.58, 1,223,435.67 and 283,153.53

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Solution

The fourth proportional to 815,615.58, 1,223,435.67 and 283,153.53 is: 424,734.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,615.58 : 1,223,435.67 = 283,153.53 : x
  2. Step 2: Convert to fraction form
    815,615.58/1,223,435.67 = 283,153.53/x
  3. Step 3: Cross multiply
    815,615.58x = 1,223,435.67 × 283,153.53
  4. Step 4: Simplify right side
    815,615.58x = 346,420,128,688.42
  5. Step 5: Solve for x
    x = 346,420,128,688.42/815,615.58
  6. Step 6: Final answer
    x = 424,734.57

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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.