Home / 815,533.75-1,125,436.58-457,837.75

Finding the Fourth Proportional to 815,533.75, 1,125,436.58 and 457,837.75

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Solution

The fourth proportional to 815,533.75, 1,125,436.58 and 457,837.75 is: 631,816.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,533.75 : 1,125,436.58 = 457,837.75 : x
  2. Step 2: Convert to fraction form
    815,533.75/1,125,436.58 = 457,837.75/x
  3. Step 3: Cross multiply
    815,533.75x = 1,125,436.58 × 457,837.75
  4. Step 4: Simplify right side
    815,533.75x = 515,267,351,554.90
  5. Step 5: Solve for x
    x = 515,267,351,554.90/815,533.75
  6. Step 6: Final answer
    x = 631,816.10

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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.