Home / 642,284.27-963,448.28-305,150.93

Finding the Fourth Proportional to 642,284.27, 963,448.28 and 305,150.93

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Solution

The fourth proportional to 642,284.27, 963,448.28 and 305,150.93 is: 457,736.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,284.27 : 963,448.28 = 305,150.93 : x
  2. Step 2: Convert to fraction form
    642,284.27/963,448.28 = 305,150.93/x
  3. Step 3: Cross multiply
    642,284.27x = 963,448.28 × 305,150.93
  4. Step 4: Simplify right side
    642,284.27x = 293,997,137,123.15
  5. Step 5: Solve for x
    x = 293,997,137,123.15/642,284.27
  6. Step 6: Final answer
    x = 457,736.79

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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.