Home / 946,128.14-1,419,418.20-315,047.42

Finding the Fourth Proportional to 946,128.14, 1,419,418.20 and 315,047.42

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Solution

The fourth proportional to 946,128.14, 1,419,418.20 and 315,047.42 is: 472,646.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    946,128.14 : 1,419,418.20 = 315,047.42 : x
  2. Step 2: Convert to fraction form
    946,128.14/1,419,418.20 = 315,047.42/x
  3. Step 3: Cross multiply
    946,128.14x = 1,419,418.20 × 315,047.42
  4. Step 4: Simplify right side
    946,128.14x = 447,184,041,811.04
  5. Step 5: Solve for x
    x = 447,184,041,811.04/946,128.14
  6. Step 6: Final answer
    x = 472,646.38

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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.