Home / 815,431.44-1,125,264.53-452,878.64

Finding the Fourth Proportional to 815,431.44, 1,125,264.53 and 452,878.64

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Solution

The fourth proportional to 815,431.44, 1,125,264.53 and 452,878.64 is: 624,955.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,431.44 : 1,125,264.53 = 452,878.64 : x
  2. Step 2: Convert to fraction form
    815,431.44/1,125,264.53 = 452,878.64/x
  3. Step 3: Cross multiply
    815,431.44x = 1,125,264.53 × 452,878.64
  4. Step 4: Simplify right side
    815,431.44x = 509,608,269,986.64
  5. Step 5: Solve for x
    x = 509,608,269,986.64/815,431.44
  6. Step 6: Final answer
    x = 624,955.39

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.