Home / 641,999.62-963,145.35-342,322.18

Finding the Fourth Proportional to 641,999.62, 963,145.35 and 342,322.18

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Solution

The fourth proportional to 641,999.62, 963,145.35 and 342,322.18 is: 513,561.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,999.62 : 963,145.35 = 342,322.18 : x
  2. Step 2: Convert to fraction form
    641,999.62/963,145.35 = 342,322.18/x
  3. Step 3: Cross multiply
    641,999.62x = 963,145.35 × 342,322.18
  4. Step 4: Simplify right side
    641,999.62x = 329,706,015,868.86
  5. Step 5: Solve for x
    x = 329,706,015,868.86/641,999.62
  6. Step 6: Final answer
    x = 513,561.08

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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.