Home / 477,925.11-659,445.57-305,711.19

Finding the Fourth Proportional to 477,925.11, 659,445.57 and 305,711.19

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Solution

The fourth proportional to 477,925.11, 659,445.57 and 305,711.19 is: 421,823.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,925.11 : 659,445.57 = 305,711.19 : x
  2. Step 2: Convert to fraction form
    477,925.11/659,445.57 = 305,711.19/x
  3. Step 3: Cross multiply
    477,925.11x = 659,445.57 × 305,711.19
  4. Step 4: Simplify right side
    477,925.11x = 201,599,889,944.93
  5. Step 5: Solve for x
    x = 201,599,889,944.93/477,925.11
  6. Step 6: Final answer
    x = 421,823.18

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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.